[A] AAFE Aeroassist Flight Experiment ABCL As Built Configuration List ABHRS As Built Hardware Reporting System AC Alternating Current AC Comptroller Office ACES Acoustic Containerless Experiment System ACIP Assembly Configuration and Integration Panel ACR Active Cavity Radiometer ACRIM Active Cavity Radiometer Irradiance Monitor ACRBC Acceptance, Checkout, Retest, and Backout Criteria ACRC Assured Crew Return Capability - Now ACRV ACRV Assured Crew Return Vehicle ACTS (TOS) Advanced Communications Technology Satellite AD Aperture Door ADC Affiliated Data Center ADEOS Advanced Earth Observing Mission ADP Acceptance Data Package ADP Automated Data Processing ADPS Acceptance Data Package System ADSF Advanced Directional Solidification Furnace AEG AEG Telefunken AEPI Atmospheric Emissions Photo Imaging AES Application Engineering Services AES Atmospheric Exchange System AESE Airborne Electrical Support Equipment AFB Air Force Base AFD Aft Flight Deck AFE American Flight Echocardiograph AFP Air Force Program AFR Air Force Regulation AFSCF Air Force Satellite Control Facility AFTE Autogenic Feedback Training Experiment AFTA Aft Frame Tilt Actuator AGOSS Automated Ground Operations Scheduling System AHU Air Handling Unit AI Artificial Intelligence AIRS Atmospheric Infrared Sounder AIT Aeritalia A/L Air Lock ALAE Atmospheric Lyman Alpha Experiment ALC Augmented Landing Site ALERT Acute Launch Emergency Reliability Tip ALRUTS Automated Line Replaceable Unit Tracking System ALS Advanced Launch System ALT Altimeter AMF Astronaut Memorial Foundation AMSU Advanced Microwave Sounding Unit ANSI American National Standard Institute AO Assembly Order AOA Abort Once Around APC Adaptive Payload Carrier APCS Automated Project Control System - ARTEMIS APID Applications Process Identification APS Acquisition Processor Subsystem ARC Ames Research Center ARC Aggregation of Red Cells ARS Archive and Retrieval Subsystem (PPCU) ARTEMIS Project Management Software System - Metier Product ARTS Automated Resource Tracking System - ARTEMIS ASCII American Standard Code for Information Interchange ASE Airborne Support Equipment ASP Attitude Sensor Package ASRS Automated Support Requirements System ASSY Assembly AST Astro Star Tracker ASTER Advanced Spaceborne Thermal Emission and Reflection Radiometer ASTG Aerospace Test Group ATC Absolute Time Command ATCS Active Thermal Control System ATE Automated Test Equipment ATLAS Atmospheric Laboratory for Applications and Science ATMOS Atmospheric Trace Molecule Spectroscopy ATP Accelerated Training Program ATP Acceptace Test Procedure AWAD Assembly Work Authorization Document [B] B Bit BLOW Booster-Lift-Off Weight B&P Budgetary and Planning B&W Black and White B-1 DIV B-1 Division (Rockwell) B/A Bank Angle B/A Barometric Altimeter B/A Buffer Amplifier B/C Bench Check B/L Baseline B/O Booster Orbiter B/O Breakout B/O Burnout B/SC Brake Skid Control B/SMPL Bits per Sample B/U Backup B/V Bleed Valve B/W Black and White B/sec Bits per Second BA Bank Angle BA Breathing Air BAC Boeing Aircraft Company BAC Booster Assembly Contractor BAC Buffer Access Card BACS Body Axis Coordinate System BAI Barometric Altitude Indicator BAIR Breathing Air BAL Balance BAN Budget Allocation Notice BARB Ballast Aerating Retrieval Boom BARO Barometer BARS Baseline Accounting and Reporting System BASD Ball Aerospace Systems Division BASS Backup Avionics System Software BATT Battery BB Breadboard BBC Before Business Clearance BC Battery Charger BC Binary Counter BC Bus Coupler BCCT Break Control Command Transducers BCD Binary Coded Decimal BCE Backup Control Electronics BCE Bus Control Element BCFS Backup Flight Control System BCH Binary Coded Hexadecimal BCH Bose-Chaudhuri-Hocquenghen (Computer Code) BCN Beacon BCP Base Condemnation Percent BCP Benchmark Control Point BCR Bar Chart Report BCRD Basic Consolidated Requirements Document BCRT Binary Code Range Time BCT Bus Configuration Table BCU Bus Control Unit BCWP Budget Costs for Work Performed BCWS Budget Costs for Work Scheduled BD Band BD Binary Decoder BD Binary Digit BD Binary Discrete BD Board BDA Backup Drive Amplifier BDA Bermuda Island BDA Bermuda (STDN) BDA Blast Danger Area BDA Backup drive amplifier BDC Bi-Directional Converter BDC Bit Error Rate BDCF Baseline Data Collection Facility BDCR Baseline Document Change Request BDD Baseline Definition Document BDT Block Data Transfer BDY Body BDYFLP Body Flap BECO Booster Engine Cutoff BER Bit Error Rate BFC Backup flight control BFCS Backup flight control system BFS Backup flight system BITE Built-in test equipment BLK Block BLR Boiler BLS Bottom Left Side BLV Bleed Valve BLWR Blower BM Basal Metabolism BM Business (Branch) Manager BM Body Mounted BMA Body-Mounted Accelerometer BMAG Body-Mounted Attitude Gyro BMAP Buffer Map BMB Base Maintenance Building BME Bench Maintenance Equipment BMFT German D-1 Spacelab Payload BMMD Body Mass Measuring Device BMS Background Measurement Satellite BMU Bus Monitor Unit BN Ballistic Number BO Breakout Box BOB Best on Best BOD Beneficial occupancy Date BOE Break of Entry BOF Beginning of File BOI Break of Integrity BOM Beginning of Month BOM Bill of Materials BOP Baseline Operations Plan BOPACE Boeing Plastic Analysis Capability for Engines BOS Backup Operating System BOS Bright Object Sensor BOT Beginning of Tape BOT BOTSWANA (STDN) BOW Bill of Work BP C-BD C-Band BP C/SCSC Cost/Schedule Control Systems Criteria BP C/D Countdown BP C&T Communication and Tracking BP C&TSS Communication and Tracking Subsystem BP Barber Pole BP Blood Pressure BP Bandpass BP C/S Counts per Second BP C/W Carrier Wave BP C/P Cold Plate BP Checkout BP C/0 Changeout BP Closed Loop BP C/L Checklist BP C/F Center Frequency BP C/R Commutation Rate BP C/C Combustion Chamber BP C-to-C Computer-to-Computer BP C-C Carbon-Carbon BP C-Band 3900 to 6200 MHz BP Caution and Warning BP C&W Caution and Warning BP Contamination/Overpressure BP CA California BP C&M Control and Monitoring BP C&DS Command and Data Simulator BP C&DH Command and Data Handling BP C&D Control and Display BP One Hundred BP Cycle BP Constant BP Complete BP Coeff icient BP Centigrade BP Celsius BP Capacitance BP Back Pressure BP Cutoff BP Boilerplate BP c BP c Candle BPD Baseline Program Documentation BPI Bits per Inch BPM Beats per Minute BPMS Blood Pressure Measuring System BPR Bypass Ratio BPS Bits Per Second BPT Body Point BPV Bipropellant Valve BR Bit Rate BRAVO Business Risk and Value of Operation in Space BRCS Basic Reference Coordinate System BRG Bearing BRK Brake BRKT Bracket BRM Biological Research Module BRPM Breath Rate per Minute BRRS Banana River Repeater Station BRS Bottom Right Side BRT Bright BS Block Specification BSC Brake Skid Controller BSDP Booster Stage Discharge Pressure BSE Booster Systems Engineer BSI Basic Shipping Instructions BSI "Boeing Services International, Inc." BSM Booster Separation Motors BSM Booster separation motor BSR Basic System Release BSR Bite Status Register BSRM Booster Solid Rocket Motor BSS Backup System Services BSTR Booster BT Burn Time (Engine) BTC Bus Tie Contractor BTC Binary Time Code BTMS Body Temperature Measuring System BTR Burn Time Remaining BTR Boom Time Remai-ni'ng BTR Bus Transfer BTU Bus Terminal Unit BU Backup BUC Backup Computer BUC "Buckhorn, CA (GSTDN)" BUFF Buffer BUOU Backup Optical Unit BUR Backup Rate BW Bridgewire BW Bandwidth BX Box BY Budget Year BYP Bypass Btu British Thermal Unit [C] C ofF Cost of Facilities C ofF Construction of Facilities C&T Communications and tracking C/W Caution and warning CA Carrier Aircraft CA Contingency Abort CA Cone Angle CA Contract Award CA Corrective Action CA Cost Account CAB Cabin CAB Cabinet CAB Civil Aeronautics Board CAB Cost Audit Board CACB Center Aisle Connector Bracket CACC Communications and Configuration Console CACON Cargo Container CAD Computer Aided Design CADE Controller/Attitude-Direct Electronics CADS Command and Data Simulator CADSI Communications and Data Systems Integration CADU Control and Display Unit CAL "Calibrate, Calibration" CAL Cornell Aeronautical Laboratory CALC Calculate CAM Computer Aided Manufacturing CAM Content Addressable Memory CAM Carrier Aircraft Modification CAM Computer Annunciation Matrix CAM R Camera CAN Certification Analysis Network CAP Contractor Acquired Property CAP Crew Activity Plan CAP CCMS Application Programs CAP "Capacitor, Capacity" CAP Cost Account Package CAP Computer Application Program CAPCOM Capsule Communicator CAPRI Captive Reset ignitor CAPS Common Attitude Pointing System CAPS Crew altitude protection system CAPSIM Captive Simulation CAR Certification Approval Request CAR Configuration and Acceptance Review CAR Corrective Action Request CARID Customer Acceptance Review Item Disposition CARR Customer Acceptance Readiness Review CAS Calibrated Airspeed CAS Command Augmentation System CAS Control Augmentation System CASO Cancellation Addendum Sales Order CASP CDS APPlication SL'pport Programs CASS CITE Augmentation Support System CATEG Category CAU Customer Acquisition Unit CAU Command Acquisition Unit CAU Command Activation Unit CAUT Caution CB Center of Buoyancy CB Circuit Breaker CB Constant Bandwidth CB/ac Circuit Breaker (ac only) CB/dc Circuit Breaker (dc only) CBA C-Band Transponder Antenna CBC Complete Blood Count CBE "Connector Bracket, Experiment" CBIL Common and Bulk Items List CBP Connector Bracket Power CBS Connector Bracket Signal CBSA Cargo Bay Stowage Assembly CBV Cabin Bleed Valve CBW Constant Bandwidth CBX C-Band Transponder CBrF3 Bromotrifluoromethane (Fire-Extinguishing Material) cal Calories cc Channel Controller cc Crew(s) Certified cc Crew Compartment cc Chief Counsel (KSC Directorate) cc Cost Center cc Communications Control cc Carbon-Carbon ccc Complex Control Center ccc Central Computer Complex ccc Communication(s) Control Console ccc Controller Checkout Console ccc Contaminant Control Cartridge CCA Communications Carrier Assembly CCA Contract Change Authorization CCA Coolant Control Assembly CCA Contract Change Authorization CCA Communications carrier assembly CCAFS Cape Canaveral Air Force Station CCAFS Cape Canaveral Air Force Station CCATS "Command, Communication, and Telemetry System" CCB Configuration Change Board CCB Change Control Board CCB Configuration Control Board CCBD Configuration Control Board Directive CCD Charge Coupled Device CCD Checkout Command Decoder CCD Constants Change Display CCDR Contractor Critical Design Review CCE Computer Command Engineer CCF Converter Compressor Facility CCFF Cape Canaveral Forecast Facility CCIR International Radio Consultative Committee CCL Closed Circuit Loop CCL Commonality Candidate List CCL Configuration Control Logic ccm Crew/Cargo Module ccm Controlled Carrier Modulation ccms Command Control and Monitor System ccms "Checkout, Control, and Monitor Subsystem (LPS)" CCM E Contract Change Mass Estimate CCMS "Checkout, control and monitor system" CCN Contract Change Notice CCN Contract Change Negotiation CCOH "Corrosive Contaminants, Oxygen, and Humidity" CCP Center Console Panel CCP Configuration Control Phase CCP Commercial Change Proposal CCP Cost Control Program CCP Charge Capacitance Probe CCP Contract Change Proposal CCP Configuration Control Panel CCP Configuration Change Point CCP ComPuter Control Panel CCR Contractor Change Request CCR Control Center Rack CCRA Cape Canaveral Reference Atmosphere CCRF Consolidated Communication Recording Facility CCS Command and Control Subsystem CCS Contamination Control System CCS Console Communication System CCS Computer Core Segment CCS Complex Control Set CCS Command and Communication System CCS Central Control Station CCS Central Control Section CCT Computer Compatible Tape CCTV Closed Circuit Television CCTV Closed-circuit television CCU Central Control Unit CCU Crewman Communications Umbilical CCU Camera Control Unit CCU Crew communications unit CCU Communications carrier umbilical CCV Chamber coolant valve CCW Counterclockwise CCVA Chamber Coolant Valve Actuator CCiM Command Computer Input Multiplexer CD Command Decoder MDM CD Coefficient of Drag CD Candella (Luminous Intensity) CD Center Director (KSC Directorate) CDA Critical Design Audit CDA Command and Data Acquisition CDB Command Data Base CDB Central Data Buffer CDBFR Common Data Buffer CDC Confined Detonating Cord CDC Countdown Clock CDDT Countdown Demonstration Test CDF Cable Distribution Frame CDF Central Data Facility CDF Circuit Design Fabrication CDF Confined Detonating Fuse CDF Cool-Down Facility CDF Confined detonating fuse CDF&TDS "Circuit Design, Fabrication, and Test Data Systems" CDH Constant Delta Height CDI Course Deviation Indicator CDI Course deviation indicator CDM Communications/Data Manager CDMS Command and Data Management Subsystem CDMS Command and data management system CDN CDR Discrepancy Notice CDNR CDR Discrepancy Notice Record CDP Command Data Processor CDPIS Command Data Processing and Instrumentation System CDQR Critical Design and Qualification Review CDR Commander CDR Critical Design Review CDR "Cleaning, Decontamination Request" CDRL Contract Data Requirements List CDRR Contract Documentation Requirements Records CDS Central Data Subsystems (LPS) CDS Central Data System CDS Closeout Door System CDS Collision Detector System CDS Control Data Corporation CDS Control Data System CDS Central data subsystem CDSC Communications Distribution and Switching Center CDT Configuration Data Table CDT Compressed Data Tape CDT Command Descriptor Table CDT Central Daylight Time CDT Countdown Time CDU CRT Display Unit CDU Coupling Data Unit CDU Coupling Display Unit CDU Computer Display Unit CDU Control and Display Unit CDW Command Data Word CDW Computer Data Word CE Cost Element CE Control Element CE Civil Engineering CE Change Evaluation CE Current Expendable CEA Control Electronics Assembly (for MMU) CEC Control Encoder Coupler CECP Compatibility Engineering Change Proposal CEDC Cyclic Error Detection Code CEI Contract End Item CEI Configuration End item CEIAC Coastal Engineering Information Analysis Center CEIT Crew Equipment Interface Test CEIT Crew Equipment Integration Test CEIT Crew equipment interface test CEQ Council on Environmental Quality CER Cost Estimating Relationship CERT Certification CES Crew Escape System CES Control Electronics System CF Centrifugal Force CF Center Forward CF Carrier Frequency CFD "Converter, Frequency to dc Voltage" CFE Contractor Furnished Equipment CFES Continuous Flow Electrophoresis System CFI Card Format Identifier CFM Customer Furnished Material CFM Cubic Feet per Minute CFMF Crip Flow Management Facility CFP Conceptual Flight Profile CFR Code Federal Regulation CFRP "Carbon Fiber Reinfr-,rced Plastics" CFSTI Clearinghouse for Scientific and Technical informatio CFT Common Facilities Test CFY Company Fiscal Year CG Center of Gravity CGAU Cabin Gas Analysis Unit CGC Command Guidance Computer CGP Central Grounding Point CGSS Cryogenic Gas Storage Subsystem CH Channel CH 4 Methane CHAN Channel CHAR Character CHCS Cabin Humidity Control Subsystem CHG Change CHG Charge CHGR Charger CHL Certified Hardware List CHL Channel CHMBR Chamber CHR Cooper-Harper Rating CHUTE Parachute CHX Cabin Heat Exchanger CI Course (deviation display) invalid CI Color Interior Film CI Configuration inspection CI Configuration Item CI Certification Inspection CI Crew Interface CI Continuous Interlock CIC Command Interface Control CIC Control and Information Center CICU Computer Interface Control Unit CICU Computer Interface Conditioning Unit CIA Control Interface Assembly CIA Controller interface assembly CIAP Climatic Impact Assessment Program CIB Change Implementation Board CIB Change Impact Board CiCC Cargo Integration Control Center CICU Communication interface control unit CiSS Centaur integrated Support Structure CID Computer Interface Device CIDL Configuration Item Data List CIDR Critical Intermediate Design Review CIE Communications interface Equipment CIF Central Instrumentation Facility CIG Cable Integrity Group CIG Communications and Interface Group CIL Critical Items List CIM Computer Input Multiplexer CIN Change Identification Number CIR Circulate CIR Configuration inspection Report CIR Circle CIR Cargo Integration Review CIRC "Circularization Burn, OMS2" CIRCUM Circumference CIRHS Critical Items and Residual Hazards List CIS Contractor's Information Submittal CIS Central Integration Site CIS Component Identification Sheet CIS Communication Interface System CIS Change Impact Summary CIS Communications interface system CIT Critical Item Tag CITE Cargo Integration Test Equipment CITE Cargo integration test equipment CIU Communication interface unit CIU Computer Interface Unit CIU Controller Interface Unit CIVT Cargo Interface Verification Test CK Check CKAFS Cape Kennedy Air Force Station (Changed to CCAFS) CKPT Checkpoint CKRA Cape Kennedy Reference Atmosphere (Changed to CCR CKS Checks CKT Circuit CL Centerline CL Closed Loop CL Closed Loop Contro! Logic CL Close (Closed) CL Coefficient of Lift CL Cluster Class Classification CLC Change Letter Control CLDST Closed Loop Dynamic Stability Test CLG Ceiling CLIP Combined Laser Instrumentation Package CLM Care Logic Module CLMC Central Logistics Management Center CLNR Cleaner CLR Clear CLRB Cost Limit Review Board CLS Contingency Landing Site(s) CLSO Contingency Landing Support Officer CLT Closed Loop Test cm Centimeter cm Control Monitor cm Center of Mass cm Cargo Management cm Configuration Management cm Consumables Management cm Crew Module CM&S Communications Maintenance and Storage CMA Configuration Management Accounting CMACS Central Monitor and Control System CMAO Contract Management Assistance Officer CMAT Compatible Materials (List) CMC Command Module Computer CMC Crew Module Computer CMD Command CMD DCDR Command Decoder CMG Control Moment Gyro CMM Condition Monitored Maintenance CMN Crewman CMO Configuration Management Office CMOS Complementary Metal Oxide Silicon CMP Configuration Management Plan CMPR Compare CMPRT Compartment CMPTD Computed CMPTR Computer CMPTR ACTY Computer Activity CMR Center Materials Representative CMRB Contractor Material Review Board CMRR Common Mode Rejection Ratio CMS-2 Cambridge Monitoring System (IBM Computer Program) CMSi Checkout/Control and Monitor Subsystem Interface CMTS Computerized Maintenance Test System CMV Common Mode Voltage CN Change Notice CNDS Condensate CNRL Communications and Navigation Research Laboratory CNSL Console CNTL Control CNTR Counter CNTRL Controller CNTRL Control CNWDI Critical Nuclear Weapons Design Information CO Carbon monoxide Co Cargo Operations (KSC Directorate) Co Cutoff Co Contracting Officer Co Change Order CO2 Carbon dioxide COA Center Operations Area COAS Course Optical Alignment Sight COAS Crew(man) Optical Alignment Sight COAS Crewman optical alignment sight COAX "Coaxial, Coaxial Cable" COB Communications Office Building COBE Cosmic Background Explorer COBOL Common Business Oriented Language COC Close-Open-Close COD Center Operations Directorate (JSC) COE Corps of Engineer COFI Checkout and Fault Isolation (on Board) COFR Certificate of Flight Readiness COFW Certificate of Flight Worthiness COIM Checkout Interpreter (Software) Module COL Checkout Language COL Coast Orbital Insertion COLM Column com Computer Output Microfiche com "Common, Commonality" com-m Common Mode comm Communications COMAS Combined Orbital Maneuvering and Abort System COMAT Compatibility of Materials COMB Combustion COMEC Communications Security COMMAND Computer Command Engineer COMP Computation of Rendezvous Targeting COMP Component COMP Compensate COMP Compass COMP Computer COMPEN Compensator COMPL Completed COMPOOL Common Data Pool COMPR "Compress, Compressor" COMPT COmPartment COMR&DSAT Communication Research and Development Satellite COMSAT Communications Satellite COMSEC Communications Security CON Contact CONCN Concentration COND "Condition, Conditioner" COND Condenser CONDR Conditioner CONF Conference CONFIG Configuration CONN "Connect, Connector" CONS Console CONSTR "Construct, Construction" CONT Container CONT Contingency CONT "Continue, Continued, Continuous" CONTAM Contaminate CONTIG Contiguous CONTR "Control, Controller" CONUS Continental United States CONV Converter COOP Cooperative COORD Coordinate COP Contingency Operations Plan COQ Certificate of Qualification COR Contracting Officer Representative CORE Common Operational Research Equipment COS Carry-on Oxygen System COS Console Operating System COS Cosine COSATI Committee on Scientific and Technical Information COSI Closeout System Installation COSTA Cost Accounting (Code) COV Cutoff Valve CP Cargo Projects Office (KSC) CP Cargo Program Office (KSC) CP Candle Power CP Center of Pressure CP Cold Plate CP Console Processor CP Chemically Pure CP Circular Pitch CP Control Panel CP Control Point CP-DPO Deployable Payloads Projects Office (KSC) CP-FEO Cargo Facilities and GSE Projects Office (KSC) CP-PCO Cargo Projects-Program Control Office CP-SPO Spacelab Projects Office (KSC) CPA Contingency Planning Aid CPA Critical Path Analysis CPAF Cost Plus Award Fee CPC Computer Program Component CPC Central Planning Center CPC Characteristics Properties Code CPC I Computer Program Change Instruction CPCB Crew Procedures Control Board CPCEI Computer Program Contract End Item CPCI Computer Prograni Configuration Item CPCL Computer Program Control Library CPCL Computer Program Change Library CPCR Computer Program Change Request CPCR Crew Procedures Change Request (Form 482) CPD "Converter, Pulse to dc Voltage" CPD Crew Passive Dosimeter CPD Crew Procedures Division CPD R Contractor's Preliminary Design Review CPDDS COmPuter Program Detail Design Specification CPDS Computer Program Design (or Development) Specificat CPDS Crew Procedures Documentation System CPE Chief Program Engineer CPE I Computer Program End Item CPES Crew Procedures Evaluation (Evaluator) Simulator CPF Cost per Flight CPF Cargo Processing Facility CPF Central Processing Facility CPFF COst Plus Fixed Fee CPG Change Planning Group CPI Cross Pointer Indicator CPI Crosspointer indicator CPIF COst Plus Incentive Fee CPL Couple CPLT Complete CPM Computer Program Module CPM Critical Path Method CPM Cycles per Minute CPMP Crew Procedures Management Plan CPR Critical Problem Report CPS Cycles Per Second CPSE Common Payload SuPport EquiPment CPSS Cold Plate Support Structure CPSS Critical Phase System Software CPT Computer Program Tapes CPT Cargo Processing Technician CPU Central Processing Unit CPU Computer Printer Unit CPU Central processor unit CQD R Critical Qualification Design Review CR Card Reader CR Certification Requirement CR Crew CR Control Room CR Change Request CR Configuration Review CR/DIR Change Request Directive CRAS Cost Reduction Alternative Study CRB Change Review Board CRC Contractor Recommended Code CRC Cost Reduction Curve CRD Change Request Disposition CRDP Computer Resources Development Plan CRES Corrosion Resistant Steel CRG Change Review Group CRG Correspondence Review Group CRIS Calibration Recall and Information System CRISP Computer Resources Integrated Support Plan CRIT Critical CRM Chemical Release Module CRMD Computer Resources Management Data CRN Contract Revision Number CRN Cable Routing Rotation CRO Cathode Ray Oscillograph(s) or Oscilloscopes CRP Configuration Requirements Processing CRPL Cosmic Ray Physics Laboratory CRR Critical Requirements Review CRR Computer Run Report CRS Cross CRS Course CRS C02 Reduction Subsystem CRSFD Crossfeed CRSI Ceramic Reusable Surface Insulation CRSVR Crossover CRT Cathode-Ray Tube CRT Cathode ray tube CRTG Cartridge CRW Control Read/Write CRYO Cryogenic cs STS Cargo operations (KSC Directorate) cs Common Set cs Consumables Status cs Change Status cs Checkout Station cs Control Segment cs Core Segment cs Crew Station cs Spacelab Operations Directorate CSA CYclic Strain Attenuator CSAM Crinkled Single Aluminized Mylar CSAS ComPuterized Status Accounting System CSAT Combined Systems Acceptance Test csc Computer Sciences Corporation csc Cosecant COMPuting Amplifier csc Conical Shaped Charge csc Contingency SuPport Center (CCAFS) CSCB Contractor's Summary Cost Breakdown CSCSAT Commercial Synchronous Communication Satellite CSD Crew Systems Division CSD Control System DeveloPment CSD Chemical Systems Division CSD L Charles Stark Draper Laboratory (MIT) CSDD Control Systems DeveloPment Division (JSC) CSDF Central Source Data File CSDT COMPuter Software Data Tapes CSE Communications Systems Engineer CSE Computer Support Equipment CSE Configuration Switching EquiPment CSE Common Support EquiPment CSF Cost Sensitivity Factor CSF Central Supply Facility csi Coelliptic Sequence Initiation csi Control Servo Input csi Crew Software Interface CSIR Review CSIR Computer Systems (Hardware/Software) Integration CSL Crew Systems Laboratory CSL Computer Status Lights CSL Command Signal Limiter CSOP Crew Systems Operating Procedures CSP Computer Support Program CSPU Coi-e Segment Processing Unit CSR Crew Station Review CSR Check Signal Return CSR Crew Station Review CSR Certification Status Report CSRP Computers and Software Review Panel CSS Control stick steering CSSE Control System Simulation Equipment CST Crew Station Trainer CST Contract Supplemental Tooling CST Crew Systems Trainer (One-G Trainer) CST Combined Systems Test CST Central Standard Time CSTA Crew Software Training Aid CSTR Canister CSTS Cryogenic Storage and Transfer System CSiU Core Segment Interface Unit csm Computer Status Matrix csm Command Service Module csm Common Support Module csoc Consolidated Space Operations Center css Control Stick Steering css Computer Subsystem css Core Segment Simulator CT Crawler Transporter CT Current Transformer CTA Computer Technology Associates (GSFC) CTA Controlled Thrust Assembly CTC "Camera, Timing, and Control" CTC Chief Test Conductor CTE Central Timing Equipment CTI Critical Transportation Item CTIS Crawler Transporter Intercom System CTL Central or Control CTL Canoga Test Laboratory CTM Crystalline Transitional Material CTM Contract Technical Manager CTN Certification Test Network CTP CYclic Time Processor CTP Communications Timing Procedure CTPD Crew Training and Procedures Division (JSC) CTR Contract Technical Representative CTRS Component Test Requirements Specifications CTS Ci'mPuter Test Set CTS COMPuterized Training System CTS Communications and Tracking System CTS Canadian Technology Satellite CTSD ComPuter Test Sequences Document CTSD Coordinate Transformation SYstem CTTB Checkout Techniques Test Bed CTU Central Timing Unit CTWT Counterweight CUB Commonality Usage Board CUDS Cumulative Data Statistics CUE Common Usage Equipment CUF Cross Utilization File CUIL COmmon Usage Item List CUP Commonality Usage ProPosal CVAD "Converter, Voltage, ac to dc" CVAS Configuration Verification Accounting System CVDA "Converter, Voltage Discrete, ac" CVE Complete Vehicle Erector CVR Change Verification Record CVR Configuration Verification Review CVRD "Converter, Variable Resistance, to dc Voltage" CVT Communications Vector Table CVT Concept Verification Testing CWA Clean Work Area CWA Caution and Warning Annunciator CWA Controlled Work Area CWE Caution and Warning Electronics CWEA Caution and Warning Electronic Assembly CWEU Caution and Warning Electronics Unit CWFSP Caution and Warning/Fire Suppression Panel CWG Constant Wear Garment CWLM Caution and Warning Limit Module CY Calendar Year CY Cycle CYL Cylinder cu Control Unit cu Cubic cuc ComPuter Usage Control cum Cumulative cv Check Valve cv Coefficient of Variation cv Deployable Payloads Operation (KSC Co Dir.) cv Expendable Vehicles Operations (KSC Directorate) cvm Control Valve Module cw Continuous Wave cw Command Word cw Clockwise cws Caution and Warning System cws Caution and Warning Status cwsu Caution and Warning Status Unit cwsu Condensate Water Servicing Unit cx Color Exterior Film [D] dB Decibel dP/dT Delta pressure/delta time dc DCAS Data Collection and Analysis System dc DCAR Design Corrective Action Report dc Defense Contract Administration Services dc DCAA Defense Contract Audit Agency dc Design Change Authorization dc Digital Command Assembly dc DCA Defense Communication Agency dc Direct Current dc Distribution Control Assembly D Deck D Drag D Down D Delta D Deliver (Delivery) D LSC DLTR Data Link Terminal Repeater D LSC DLSM Data Link Summary Message D LSC Defense Logistics Service Center D LSC Data Link Transmission Repeater D&C DisplaY and Control (C&D preferred) D&C Displays and controls D&CS Display and Controls Subsystem D&O DescriPtion and Operations D&P Drain and Purge D/A Digital to Analog D/C DisplaYs/Controls D/L Deorbit/Landing D/L Data Link D/L Downlist D/L Downlink D/VD Data/Voice Data DA Distribution Assembly DA Double AmPlitude DA Data Acquisition DA Deployment Assembly DA Distribution assembly DA Deployed assembly DA&D Data Acquisition and Distribution DAB Data Acquisition Bus DABS Discrete Address Beacon SYstem DAC Data Acquisition and Control DAC Data Acquisition Camera DAC Digital to Analog Converter DAC Digital to AnalYtical Conversion DACB Data Acquisition and Control Buffer DACBU Data Acquisition and Control Buffer Unit DACS Digital Acquisition and Control System DACS Data Acquisition and Control System DACT DisPosable Absorption Collection Trunk DADE Data Acquisition and Decommutation EquiPment DADS Dual Air Density Satellite DAE Data Acquisition EquiPment DAF Data Acquisition Facility DAF Data Analysis Facility DAFT Data Acquisition Frequency Table DAIS Data Avionics Information System DAL Data Acquisition List DAL Data Accession List DAL Data Aided Loop DAM Double Aluminized Mylar DAM Driver Amplifier Module DAP Data Acquisition Plan DAP Digital Autopilot DAP Digital autopilot DAR Data Aided Receiver DAR Digital Autopilot Requirements DAR Deviation Approval Request DAR Drawing Analysis Record DARS Data Acquisition and Reduction System DARTS Digital Automated Radar Tracking System DAS Documentation Accountability Sheet DAS Digital Avionics System DAS Digital Address System DAS Data Analysis Station DAS Data Acquisition System DASA Dual Aerosurface Servo Amplifier DATE "Dynamics, Acoustics, and Thermal Environment" DAU Digital Adapter Unit DAU Data Acquisition Unit DAV Data Available DAV L Data Available-Low DB Deadband DB Data Base DB Data Bus DB Dry Bulb DB Distribution Box DB Design Baseline DBC Data Bus Coupler DBC Data Bus Control DBC Data bus coupler DBCI DB with Respect to a Circular Polarized Antenna DBE Data Bus Element DBFN Data Bus File Number DBFN Data Base File Number DBFN DBG Data Bus Group DBGMP DBL Double DBGMP Data Bus Generation and Maintenance Package DBGMP Data Bus Isolation Amplifier DBGMP DBIA Data Bus Interface Adapter DBGMP DBI Data Bus Interface Unit-Launch DBGMP DBIU Data Bus Interface Unit DBGMP DBS Data Base System DBGMP dBM Decibels Referred to I Milliwatt DBGMP DBN Data Bus Network DBGMP DBP Design Baseline Program DBGMP DBRN Data Bank Release Notice DBGMP DBM Data Base Management DBGMP dBW Decibels Referred to I Watt DBGMP DBW Data Bus Wire DBGMP DBUR Data Bank Update Request DBIA Data bus isolation amplifier DBN Data bus network DC DeveloPment-Center DC Data Coordinator DC Display Coupler DCC Data ComPutation Complex DCC Display COMPuter Control Unit DCC Document Control Center DCC Digital Communications and Control Unit DCC DCCU Digital Command and Control Unit DCC Data computation complex (JSC) DCIB Data Communication InPut Buffer DCIM/DSCIM Display SYstem Computer Input Multiplexer DCIU Digital Control and Interface Unit DCKNG Docking DCL Document Change List DCM Direction Cosine Matrix DCM DECOM Control Memory DCM Display and Control Module DCM Display and control module DCMB Development Configuration Management Board DCN Design Change Notice DCN Document Change Notice DCN Drawing Change Notice DCNP Document Change Notice Proposal DCO Detailed Checkout DCOP Detailed Checkout Procedures DCOP "Displays, Controls, and Operations Procedures" DCP Data Collection Platform DCP Depot Condemnation Percent DCP DEU Control Program DCP Development Cost Plan DCPEI DEU Control Program End Item DCR Design Change Request DCR Design Certification Review DCR Document Change Record (or Review) DCR Design Concern Report DCS Data Communication System DCS Design Criteria Specification DCS Design Communication System DCS Detail Checkout Specification(s) DCS Digital Command System (Subsystem) DCS Display and Control System DCS Document Control System DCS Dual Checkout Station DCS Data Control System DCSI Data and Cqntrol Signal Interface DCSP Digital Control Signal Processor DCSU Digital Computer Switching Unit DCU Digital Computer Unit DCU Display and Control Unit DCV Direct Current Volts DD Data Depository DD Mechanical and Facilities Engineering (KSC DE Dir.) DD Directives Documentation DD Dedicated Displays DD Data Display DD Decoder Driver DD&CS Dedicated Display and Control Subsystem DD/HH:MM:SS Day/Hour:Minute:Second DDA Digital Differential Analyzer DDA ICD Departure Authorization DDAS Digital Data Acquisition System DDC Defense Documentation Center DDC Data Distribution Center DDC Digital Data Cell DDD Display Decoder Drive DDD Design Definition Document DDDL Digital Data Downlink DDDU Digital Decoder Driver Unit DDI Dedicated Display Indicator DDI Discrete Data input DDI Discrete Digital Input DDIS Data Depository Index System DDL Data Downlink DDM Data Display Module DDM Data Display Monitoring DDM Discrete Data Management DDMS DOD Manager for Space Shuttle Support DDO Discrete Digital Output DDP Design Development Plan DDP Digital Data Processing (Processor) DDPC Digital Data Processing Center (Complex) DDPF Dedicated Display Processing Function DDPS Digital Data Processing System DDR Data Discrepancy Report DDR Design Development Record DDR Detail Design Review DDS Documentation Distribution System DDS Data Display System DDS Detailed Design Specification DDT&E "Design, Development, Test, and Engineering/Evaluatio" DDT&E "Design, Development, Test, and Evaluation" DDT&E "Design, development, test and evaluation" DDTF Dynamic Docking Test Facility DDTS Dynamic Docking Test System DDU Decommutator Distribution Unit DDU Data Display Unit DDU Display Driver Unit DDU Display driver unit DE Design Engineering (KSC Dir.) DE Doppler Extractor DE Dynamics Explorer DEA Deployed electronics assembly DEACT Deactivate DEC Declination DECL Direct Energy Conversion Laboratory (JSC) DECOM "Decommutate, Decommutator" DECR Decrease DECS Civil Engineering Office at Vandenberg DECU Data Exchange Control Unit DED "Dedicate, Dedicated" DEDA Data Entry and Display Assembly DEE Digital Events Evaluator DEF Definition DEFL Deflect DEG Degree DEI Design Engineering Identification DEIS Design Engineering Inspection Simulation DEIS Design Evaluation Inspection Simulator DEL "Deliver, Delivery" DEL "Deorbit, Entry, and Landing" DELTA-T Difference in Temperature DEMOD "Demodulate, Demodulator" DEMUX Demultiplexer DEORB Deorbit DEPL Deploy DEPRESS Depressurize DEPT Department DER Drawing Error Report DERIGID Derigidize DES Data Exchange System DES "Descend, Descent" DESAT Desaturated DESC Descent DESIG Designate DESPOT Design Performance OPtimization DEST Destination DET Detent DET Detail DETN Detection DETR Detector DEU Display Electronic(s) Unit DEU Display electronics unit DEV "Develop, Development" DEVN Deviation DEW Distant Early Warning DF Direction Finder (Finding) DF Disassembly Facility DF Development-Forward DF Development Flight DF Display Functions DF-SPE-A Shuttle Project Engineering Office DFCS Digital Flight Control Software (System) DFE Data Flow Engineer DFE Direction Finding Equipment DFG Display Format Generator DFI Development Flight Instrumentation DFI Development flight instrumentation DFR Defrost DFRC Hugh L. Dryden Flight Research Center DFRF Dryden Flight Research Facility DFRN Differential DFRN PRESS Differential Pressure DFS Directional Finding System DFS Dynamic Flight Simulator DFVLR Deutsche Forschungs-und Versuchsanstalt Luft-u DG Display Generator DH Decision Height DHA Design Hazards Analysis DHE Data-handling equipment DHS Discrete Horizon Sensor DI Display Interface Processor (Software Functional Element) DI Display Interface DI Discrete Input DI Development Integration DI Data Integrator DIA Diameter DIAG Diagonal DIAGN Diagnose DIDS Defense Integrated Data System DIF Discrete Increment Filter DIF Difference DIFF Differential DIGI Digital DIH Discrate Input High DIH Discrete Input High DIL Deliverable Items List DIL Discrete Input Low DIM Design Interface Meeting DIMEN Dimension DIP Designated Inspection Point DIP Display Input Processor DIP Display Interface Processing (Processor) DIPEC Defense Industrial Plant Equipment Center DIPL Display Initial Program Load DIR Direct DIR Document Information Record DIS Documentation Index System DIS Disagree DISAP Disapproved DISASSY Disassembly DISC Discone DISC Disconnect DISC Discrete DISCH Discharge DISENG Disengage DISP Dispenser DISP Display DIST Distribution DISTR DIU Dynamic Integrated Test DISTR Digital Interface Unit DISTR DIV Division DISTR DIT Data ld Table DISTR Distributor DK Docking DK DisplaY/Keyboard DK Deck DK Display keyboard DL Downlink DL DeveloPment-Left DL Electronics Engineering (KSC DE Dir.) DLAT Destructive Lot AccePtance Testing DLC Direct Lift Control DLS Dynamic Load Simulator DLY Delay DM Docking Mechanism DM "Document, Documentation" DM Disassembly Manual DM DeveloPmental Instrumentation MDM.Mid DM DeveloPment Motor DM Data Manager DMA Direct MemorY Access DMA Direct MemorY Address DMC Drive Motor Assembly DMC Direct Maintenance Cost DMC Data Management ComPuter DMCF "Deservicing, Ma ntenan" DME Distance Measur ng EquiPment DME Distance-measuring equipment DMG Data Management Group DMIA Dual Multiplexer Interface Adapter DMIS Data Management Information System DML Developmental Instrumentation MDM-Left DMON Discrete Monitoring DMP Dump DMP DEU Message Processor DMP Deployable Maintenance Platform DMR Developmental Instrumentation MDM-Right DMS Data Management System DMS Docking Mechanism System (Subsystem) DMS Docking Module Subsystem DMS Dynamic Motion Simulator DMSS Data Management System Simulator (CVT) DN Down DN Discrepancy Notice DNA Does Not Apply DNLK Downlink (D/L preferred) DNLT Downlist DNO Descending Node Orbit DNP Dynamic Nuclear Polarization DO Discrete Output DOA DePartment of Agriculture DOC Department of Commerce DOC "Document, Documentation" DOD Department of Defense DOD Department of Defense DOD-STP Department of Defense-Standard Satellite DODD Department of Defense Directive DOE Department of Energy DOF Direction of Flight DOF Degree-of-Freedom DOH Discrete Output High DOI Descent Orbit Insertion DOL Department of Labor DOL Discrete Output Low DOMSAT Domestic Satellite DOMSAT Domestic satellite DOP Diver Operated Plug DOS Disk Operating System DOSIM Dosimeter DOT Department of Transportation DOT Deployment Operations Team DOT/CIAP DOT Climatic impact Assessment Program DOY Day of Year DP Double Precision DP Differential Pressure DP Development Phase DP Data Processing DP Double Pole DP Design Proof DP Deployable Payload DP Delayed Procurement DP&S Data Processi.ng And Software DP&SS Data Processing and Software Subsystem DP/DT Delta Pressure/Delta Time DPA Data Processing Assembly DPA Data processing assembly DPI Detail Program Interrelationships DPLR DOPPler DPM Dual port Memory DPN L Distribution Panel DPP Definition Phase Review DPP E)eve@opment-Right DPP Design Review DPP "Discrete Registe," DPP Dispatch BeliabilitY DPP D'isposit'lon Record DPP Data Processing and Software DPP Deployment Pointing Panels DPP Door DPP Discrepancy R12POrt DPP Data Processing System (Subsystern) DPP Data Processing Software System DPP Data Requirements and AnalYsis DPP Drive DPS Data processing system DPT Design Proof Test DPY Deploy DR Dead Reckoning DRA Data Release Authorization DRB Design Review Board DRB Design Requirements Baseline DRC Data Reduction Center DRC Discrete Rate Command DRD Document Requirement Description DRD Data Requirement Description DRD Detailed Requirements Document DRD Data Requirements Document DRF Data Request Form DRF "Digital, Radio Frequency" DRF Documentation Requisition Form DRG Digital Ranging Generator DRI Data Rate Indicator DRIRU Dry Rotor Inertial Reference Unit DRK Display Request Keyboard DRL Data Requirements List DRL Document Requirements List DRM Data Records Management DRM Design Reference Mission DRM Drawing Requirements Manual DRN Drain DRO Document Release Order DROG Drogue DRR Design Requirements Review DRR Data Recorder/Reproducer DRS Digital Range Safety DRS Data Relay Satellite DRS Data Relay Station DRSS Discrepancy Report Squawk Sheet DRT Design Reference Timeline DRUC Disposition Record Unsatisfactory Condition DS Data Storage DS& R Data Storage and Retrieval DSA Defense Supply Agency DSAD Data Systems and Analysis Directorate (JSC) DSB Document Status Bulletin DSB Double Side Band DSC Data Separator Card DSC Dedicated signal conditioner DSN Deep-Space Network DTP Detail Test Plan DTPR Detailed Test Procedures DTRD Development Test Requirements Document DTS Data Transmission System DTS Data Transfer System DU Display Unit DU Display unit DUA Digital Uplink Assembly DUC Digital Uplink Command DUM Dummy DUPLX Duplex DUPLXR Duplexer DUR Duration DV Designated Verification DV Differential Velocity DV Designee for Verification DVD Delta Velocity Display DVM Digital Voltmeter DVS Design Verification Specification DVS Digital Voice System DVT Design Verification Testing DW Data Word DWG Drawing DWI Data Word in DWS Disaster Warning Satellite DWV Dielectric Withstanding Voltage DY Deputy Director (KSC Directorate) DYN Dynamic [E] E East E LACS Extended Life Attitude Control System E LSC Earth Landing Sequence Controller E LSS Emergency Life Support System E&D Engineering and Development E&D Engineering and DeveloPment Directorate (JSC) E-E End-to-End E-MUX Electrical Multiplex E-P Electron/Proton E/0-ims E/0-Information Management System E/C Encoder/Coupler E/L Entry/Landing E/M Engineering Model E/O Engineering/Operations E/W Energy to Weight Ratio E/W Energy Over Weight EA Electronic Assembly EA Each EA Elevation Angle EAC Energy Absorbing Capacity EAC Estimate at Completion EAD ElectricallY Alterable Device EADI Electronic Attitude Director Indicator EAFB Ellington Air Force Base EAFB Elgin Air Force Base EAFB Edwards Air Force Base EAFB Edwards Air Force Base EAM Electrical Accounting Machine EAR Engineering AnalYsis Report EAS Equivalent Air Speed EAS Equivalent airspeed EAT Environmental Acceptance Test EB Emergency Box EB Electronic Beam EBC Emulated Buffer COMPuter EBCDC Extended Binary Coded Decimal EBD Eyeballs Down (+GZ) EBI Eyeballs in (+GX) EBL Eyeballs Left (+GY) EBO Eyeballs Out (-GX) EBR Eyeballs Right (-GY) EBS Emergency Breathing Subsystem EBU Eyeballs Up (-GZ) EBW Exploding Bridge Wire EBW Electron Beam Welding EC Element Contractor EC Engine Control EC Engine Cutoff EC Events Coupler EC Essentiality Code EC Experiment Computer EC Events Controller ECA Engineering Change Analysis ECA Electronics Control Assembly ECA Epoxy Curing Agent ECAS Experiment Computer Application Software ECB Engineering Change Board ECB Event Control Block ECB Events Control Buffer ECC Engineering Critical Component ECC Engineering Change Control ECCB Engineering Change Control Board ECD Engineering Control Drawing ECD Estimated Completion Date ECEP Experiment Checkout Equipment Processor ECF Equivalency Capability File ECF Element Charge Factor ECG Electrocardiogram ECG Electrocardiograph ECI Earth Centered Inertia (inertials) ECIO Experiment Computer Input/Output ECL Entry Closed Loop ECLS Environmental Control and Life Support ECLSS Environmental Control and Life Support System ECLSS Environmental control and life support system ECN Engineering Change Notice ECO Engine Cutoff ECO Engine Combustion ECO Engineering Change Order ECOS Experiment Computer Operating System ECP Explicitly Coded Program ECP Engineering Change Proposal ECP Engineering Control Proposal ECP Engineering Change Program ECR Engineering Change Request ECRA Engineering Change Request/Authorization ECS Environmental Control System (Subsystem) ECS Engine Control SYstem ECU Environmental Control Unit ECU Electronic Coupling Unit ECU Electrical control unit ED Explosive Device ED Edge Distance ED Engineering Directive ED Edit EDA Elevation Drive Assembly EDA Electronic DisPlay Assembly EDB Environmental Data Book EDC Engineering Design Change EDC(M) Electrochemical DePolarized CO (Module) EDCP Engineering Design Change ProPosal EDDR Electron DiPole-DiPole Reservoir EDF Engineering Data File EDLN Engineering DeveloPment Logic Network EDP Electonic Data Processing EDPE Electronic Data Processing EquiPment EDPM Electronic Data Processing Machine EDR Engineering Design Review EDS Emergency Detection System EDS Electrical Distribution System EDT Explosive Device System EDT Eastern Daylight Time EDU Engineering DeveloPment Unit EDV Electronic Depressurizing Valve EDW Edwards (TACAN Station) EDW "Edwards Air Force Base, CA (Deorb OPT site)" EE End Effector EECOM "EleCtrical, Environmental, and Communications" EECOM "Electrical, Environmental, Consumables, and Mechanical" EECOM Systems (MPSR) EED Electro (Electrical) Explosive Device EED Electroexplosive device EEE "Electronic, Electrical, Electromechanical" EEEU End Effector Electronics Unit EEG Electroencephalogram EEH EMU Electrical Harness EEIS End-to-End Information System EEL Electrical Equipment List EEM Earth Entry Module EENT "Eye, Ear, Nose, and Throat" EERD Enhanced Entity Relationship Diagram EES Emei@gency Ejection Suits EES Ejection Escape Suit EES Escape ejection suit EET Entry Elapsed Time EETB Electronic Electrical Termination Building EEVT Electrophoresis Equipment Verification Test EFA Experiment Flight Applications EFCS Earth Fixed Coordinate System EFF Efficiency EFFGRO Efficient Growth (Computer Program) EFP ESA Furnished Property EFTO Encrypted for Transmission Only EG Entry Guidance EGA Evolved Gas Analysis EGC Experiments Ground Computer EGF "Electrical, Grapple Fixture" EGIL "Electrical, General Instrumentation, and Lighting E" EGRET Energetic Gamma Ray Explorer Telescope EGRS Egress EGSE Electrical Ground Support Equipment EGT Elapsed Ground Time EGT Estimated Ground Time EGT Exhaust Gas Temperature EGUN Fast Pulse Electron Gun EH/M Extension Hose/Moi!thpiece EHC Electrical Heating Control EHF Extremely High Frequency EHOT External Hydrogen/Oxygen Tank EHP Effective Horsepower EHP Electrical Horsepower EHR Earned Hour Ratio EHS Environmental Health Services EHX Experiment Dedicated Heat Exchanger EI Entry interface EIA Electrical Industries Association EIASN End Item Assembly Sequence Number EIC Experimental Intercom EID End Item Documentation EIDP End Item Data Package EIFA Element Interface Functional Analysis EIR Environmental Impact Report EIRP Effective lsotropic Radiated Power EIS Electrical Integration SYstem EIS Environmental Impact Statement EIS End Item Specification EIS Extended Instruction Set EIT Entry Interface Time EIU Engine Interface Unit EIU Engine interface unit EIVT Electrical and Instrumentation Verification Test EIVT Electrical Interface Verification Test EIVT Electronic Installation Verification Test EJN Ejection EKG Electrocardiogram (Record) EKG Electrocardiograph (Instrument) EL Elastic Limit EL Elevation Angle EL Elevate EL Electroluminescent EL MECH Electromechanical ELB Elbow ELDISC Electrical Disconnect ELDV Electrically Operated Depressurization Valve ELEC Electronic ELEC Electric ELECT Electrical ELECTR Electronics ELEV Elevon ELF Extremely Low Frequency (1 Hz to 3 kHz) ELINT Electromagnetic Intelligence ELMCH Electromechanical ELMS Elements ELMS Elastic Loop Mobility System ELS Earth Landing System (Subsystem) ELS Eastern Launch Site ELS Elevon Load System ELT Emergency Locator Transmitter ELV Earth Launch Vehicle ELV Electrically Operated Valve ELV Expendable Launch Vehicle ELVN Eleven EM Exception Monitor EM Emergency EM Engineering Model EMA Electromagnetic Analysis EMC Electromagnetic Compatibility EMCC Emergency Mission Control Center EMCD Electro-Mechanical Control Diagram EMCI Engineering Model Configuration Inspection EMD Entry Monitor Display EMEC Electromagnetic Effects Capability EMEC Electromagnetic Effects Compatibility EMER Emergency EMES "Electriral, Mechanical, and Environmental Systems" EMF Electromagnetic Force EMF Electromotive Force EMG Electromyograph(gram) EMG Surface Electromyograms EMI Electromagnetic Interference EMIS Emission EMK Emergency Medical Kit EMK Emergency medical kit EML Electromagnetic Laboratory EMN Engineering Management Network EMON Exception Monitoring EMP Electromagnetic Pulse EMP EquiPment Mounting Plate EMPGS Electrical/Mechanical Power Generation SubsYstem EMR Engine Mixture Ratio EMRL Equipment Maintenance Requirements List EMS Entry Monitor Subsystem EMS Engineering Master Schedule EMS Entry Monitoring system EMS Electromagnetic Susceptibility EMSS Electromagnetic Servoactuator SYstem EMT Electro-Mechanical Test EMU Extravehicular Mobility Unit EMU Engineering Model Unit EMU Extended Memory Unit EMU Extravehicular mobility unit EMU-TV Extravehicular MobilitY Unit - Television ENA Enable ENC Encode ENCD Encode ENCL Enclose END EFF End Effector ENDF Evaluated Neutron Data File ENG "Engine, Engineer" ENG ElectronYstagnogram ENGR Engineer ENGRG Engineering ENT Entry ENVIR "Environment, Environmental" EO Earth Orbit EO Earth Observation EOC End of Contract EOC Engine Order Capability EOC Engine-out Capability EOD Estimated on Dock EOD Explosive Ordnance Disposal EODB End of Data Block EOF End of File EOG Electroculogram EOHT External Oxygen and Hydrogen Tanks EOI Earth Orbit Insertion EOL End of Line EOM Equations of Motion EOM Engineering Operations Manual EOM End of Mission EOM End of Message EOMF End of Minor Frame EOP Emergency Oxygen Pack EOP Experiments of Opportunity EOP Earth and Ocean Physics EOPAP Earth and Ocean Physics Application Program EOPO Equal Opportunity Program Office EOR Earth Orbit Rendezvous EOS Earth Orbit Shuttle EOS Emergency Oxygen Supply EOS Emergency Oxygen System EOS Extended Operating System EOS Earth Observation Satellite EOT End of Tape EOT End of Transmission EOW Energy over Weight EP Elbow Pitch EP Environmental Protective Plan EP Electrical Power EPA Environmental Protection Agency EPC Error Protection Code EPC External Power Contractor EPCDC "Electrical Power Conditioning, Distribution, and" EPCDC Control EPD Emergency Procedures Document EPD Electrical Power Distribution EPDB Electrical Power Distribution Box EPDB Experiment Power Distribution Box EPDC Electrical Power Distribution and Control EPDCS Electrical Power Distribution and Control System EPDS Electrical Power and Distribution Subsystem EPDS Electrical Power Distribution System EPDS Electrical power distribution subsystem EPDU Electrical power distribution unit EPG Electrical Power Generator EPL Electrical Power Level EPL "Electronic, Electrical, and Electromechanical Parts" EPL List EPL Emergency Power Level EPMS Engineering Performance Management System EPO Element Project Office EPOC External Payload Operations Center EPPS Electrical Power/Pyro Sequential System EPR Engine Pressure Ratio EPRN Emergency Program Release Notice EPROM Erasable Programmable Read Only Memory EPS Electrical Power System (Subsystem) EPS ExPerimental Power Supply EPS Electrical power system EPSP Experiment Power Switching Panel EPT Emergency Procedure Trainer EPT Ethylene Propylene Terpolymer EPTU Events per Time Unit EPWG Environmental Projects Working Group EQ Equivalent EQE Event Queue Element EQL Equal EQUIP Equipment EQUIV Equivalent ER Explanation Report ERA Electrical Replaceable Assembly ERAP Earth Resources Aircraft Program ERB Engineering Review Board ERBE Earth Radiation Budget Experiment ERBS Earth Radiation Budget Satellite ERC Event Recorder ERCA Electrochemically Regenerable CO2Absorber ERD Entity Relationship Diagram EREP Earth Resources Package ERG Ergometer ERNO "of European Consortium, VFW-Fokker-Mannheim," ERNO Germany (SPacelab Contractor) ERO Engineering Release Operations ERP Effected Radiative Power ERP Eye Reference Point ERP Effective Radiation Power ERPM Engineering Requirements and Procedures Manual ERR Error ERR CNTR Error Counter ERRC Expendability/Recoverability/Repair Capability ERS Engineering Release System ERS Entry and Recovery Simulation ERS Earth Recovery Subsystem ERSI Elastomeric Reusable Surface insulation ERSIR Earth Resources Shuttle Imaging Radar ERTS Earth Resources Technology Satellite ERU Earth Rate Unit ERV Expiratory Reserve Volume ES Experiment Segment ES Escape System ESA Engineering SuPPly Area ESA Engineering SuPPort Assembly ESA European Space Agency ESA ExPlosive Safe Area ESA European Space Agency ESA Explosive safe area (KSC) ESB Essential Switching Box ESC Escape ESCA Electron Spectroscopy for Chemical Analysis ESCU Extended Service and Cooling Umbilical ESD Experiment Systems Division ESD Emergency Shutdown ESDAC "European Space Data Center (Darmstadt, Germany)" ESDU Event Storage and Distribution Unit ESE Electrical Support Equipment ESE Electronic SuPport Equipment ESE EVA Support Equipment ESF Explosive Safe Facility ESI Electrical System Integration ESMC ETR ESMC "Eastern Space and Missile Center (formerly AFETR), also" ESO Event Sequence Override ESOC European Space Operations Center ESOW Engineering Statement of Work ESP Engine Service Platforms ESP Experiment Sensing Platform ESP Electroshock Protection ESPS Experiment Segment Pallet Simulator ESR Effective Sunrise ESR Engineering Support Request ESRIN European Space Research Institute ESRO European Space Research Organization ESRO European Space Research Organization ESS Environmental Support System ESS Essential ESS Experiment Subsystem Simulator ESS Effective Sunset ESS Equipment support section ESS Essential ESSA Environmental Sciences Services Administration EST Eastern Standard Time EST Estimate(d) ESTA Electronic System Test Equipment ESTA Escape System Test Article ESTEC European Space Research and Technology Center ESTEC European Space Technology Center ESTL Electronic Systems Test Laboratory ESV Emergency Shutoff Valve ESVS Escape System Ventilation System ESVS Escape Suit Ventilation System ESVS Escape suit ventilation system ESW Engine Status Word ET Edge Thickness ET Elevated Temperature ET Event Timer ET External Tank ET Elapsed Time ET External tank ET-SEP External Tank Separation ETA Environmental Test Article ETA Estimated Time of Arrival ETA Estimated Time to Acquisition ETA Explosive Transfer Assembly ETA External Tank Attachment ETB Equipment Transfer Bag ETC Estimate to Completion ETC "Greenbelt, Maryland (STDN Site)" ETC Earth Terrain Camera ETCO Equipment Transfer/Change Order ETD Electrical Terminal Distributor ETD Estimated Turnover Date ETD External Tank Door ETE End-to-End ETI Elapsed Time Indicator ETLOW External Tank Lift-Off Weight ETM ElaPsed Time Meter ETP Equipment Test Plan ETR Eastern Test Range (ESME preferred) ETR Eastern test range ETROD Eastern Test Range Operations Directive ETS Energy Transfer System ETS External Tank System (Subsystem) ETS Electrical Test Set ETSS External Tank Separation Subsystem ETVA External Tank Vent Arm EU Electronic Unit EU Engineering Units EU Experimental Unit EUROCOMSATE European Consortium Communications Satellite EUV Extreme Ultraviolet EUVE Extreme Ultraviolet Explorer EV Electron Volts EV Expendable Vehicles EV Extravehicular EVA Earned Value Analysis EVA Extravehicular Activity EVA Extravehicular activity EVAL Earth Viewing Applications Laboratory EVAL "Evaluate, Evaluation" EVAP Evaporator EVATA Extravehicular Activity Translational Aid EVC Extravehicular Communications EVCON Events Control (Subsystem) EVCS Extravehicular Communications System EVCU Extravehicular Communications Umbilical EVD External Visual Display EVF Equipment Visibility File EVLSS Extravehicular Life Support System EVM Earth Viewing Module EVMU Extra Vehicular Mobility Unit EVO Engineering Verification Order EVS Equipment VisibilitY System EVS Extravehicular Suit EVSC Extravehicular Suit Communications EVSS Extravehicular Space Suit EVSU Extravehicular Space Unit EVT Engineering Verification Test EVT Extravehicular Transfer EVVA Extravehicular Visor Assembly EWA Estimated Warehouse Arrival EWE Emergency Window Escape EWO Engineering Work Order EWR Engineering Work Request EX Executive Management Office (KSC Directorate) EXC Experiment Computer EXCH Exchange EXEC Execute EXH Exhaust EXO Experiment Operator (in Spacelab) EXP Exposure EXP Expand EXP Experiment EXPEN Expendable EXT Experiment Terminal (Operator Console on Spacelab) EXT Extension EXT External EXTD Extend EXTER External EXTGH Extinguish El End Item El Engineering Instruction El Entry Interface El Environmental Impact El Electronic Interface El Electromagnetic Interference [F] F Forward F Fahrenheit F Failure F Farad (SI Unit of Capacitance) F Female F Front F LCA Forward Load Control Assembly F&E Facility and Envii-onment F/0 Fuel/Oxidizer Ratio F/A Failure Analysis F/A Fuel-Air F/C Fit Check F/C Flight Controller F/C Fuel Cells F/D Fill/Drain F/E Full/Empty F/F "Fill/Full, Full/Fill" F/R Flared Rudder FA Failure Analysis FA Final Approach FA Final Assembly FA Flight Aft FA Flight Critical Aft FA Fully Automatic FA Flight aft FA/COSI Final Assembly and Closeout System Installation FAA False Alarm Avoidance FAA Federal Aviation Administration FAA Federal Aviation Agency FAB "Fabricate, Fabrication" FAC Facility FACI First Article Configuration Inspection FACO Fabrication and Acceptance Checkout FACO Factory Acceptance Checkout FACO Factory Assembly and Checkout FACO Final Assembly Checkout FACS Facilities Control FACS Finance and Control System FACT Flexible Automatic Circuit Tester FAD Final Approach Display FAF First Aerodynamic Flight FAIR "Fabrication, Assenibly, and Inspection Record" FAL First Approach and Landing (Test) FAM Familiarization FAMOS Flight Acceleration Monitor Only System FAO Flight Activities Officer FAP Final Approach Plane FAR Failure Analysis Report FAR Federal Aviation Regulation FAR Final Acceptance Review FAR Flight Acceptance Review FASCOS Flight Acceleration Safety Cutoff System FAT Flight Attitude Table FAWG Flight Assignment Working Group FAX Facsimile Transmission FB Feedback FB Final Braking FBAS Fixed Base Aft Station FBC Fluidized-Bed Combustion FBCS Fixed Base Crew Station (SMS) FBS Firefighters Breathing System FBV Field Base Visit FBV Fuel Bleed Valve FC Fit Check FC Flight Computer FC Flight Control FC Flight Critical FC Fuel Cell FC Flight control FC Flight critical FC Fuel cell FCA Fluids Control Assembly FCA Frequency Control Analysis FCA Functional ComPatibility Analysis FCA Functional Configuration Audit FCA Forward controller assembly FCAF Flight Crew Accommodations Facility FCAP Flight Control Applications Program FCC Federal Communications Commission FCC Flat Conductor Cable FCC Flight Control Computer FCC Flight Crew Compartment FCCP Firm Contract Cost ProPosal FCD Flight Control Division (JSC) FCDB Flight Control Data Bus FCE Flight Control Equipment FCE Flight Crew Equipment FCEF Flight Crew Equipment Facility FCEI Facility Contractor End Item FCF First Captive Flight FCF Flight Critical Forward FCF Functional Check Flight FCFM Flight Combustion Facility Monitor FCH Flight Controllers Handbook FCH L Flight Control Hydraulics Laboratory FCI Flight Control Indicator FCI Functional Configuration Identification FCIM Flight Control Interface Module FCIP Flight Cargo Implementation Plan FCIT First Computer Interface Tester FCL Freon Coolant Loop FCL Freon Coolant Line FCL Freon coolant loop FCMU Foot Controlled Maneuvering Unit FCN Function FCO Final Checkout FCO Functional Checkout FCOH Flight Controllers Operational Handbook FCOS Flight Computer Operating System (Orbiter) FCOS Flight Control Operational Software FCOS Flight Control Operating System FCOS Flight control operational software FCOS Flight computer operating system FCP Firm Cost Proposal FCP Failure Correction Panel FCP Fuel Cell Power (Plant) FCP Flight Correction Proposal FCP Fuel cell power plant FCPS Fuel Cell Power System (Subsystem) FCR Final Configuration Review FCR Flight Configuration Review FCR Flight Control Room FCR Flight Control Room FCRA Fecal Collection Receptacle Assembly FCRT Flight Display CRT FCS Fecal Containment System FCS Flight Control System (Subsystem) FCS Flight Crew System FCS Federal Communications System FCS Flight control system FCSM Flight Combustion Stability Monitor FCSS Fuel Cell Servicing System FCT Flight Control Team FCT Fuel Cell Test FCT Flight Crew Trainer FCTB Flight Crew Training Building FCTF Fuel Cell Test Facility FCTS Flight Crew Trainer Simulator FCU Fluid Checkout Unit FCW Format Control Words FD Fault Detection FD Flight Day FD Flight Deck FD Flight Director FD Freeze Dried FD Feed FD FunCtion Designator FD WMR Food Warmer FDA Fault Detection and Annunciation FDA Flight Deck Assembly (FDF) FDAI Flight Director Attitude Indicator FDB Fahrenheit Dry Bulb FDDB Function Designator Data Base FDF Flight Data File FDF Flight data file FDI Fault Detection and Identification FDI Fault Detection and Isolation FDI Failure Detector Indicator FDIIR Recompensation FDIIR "FaLilt Detection, Isolation, Identification, and" FDIR Recovery/Recognition FDIR Fault Detection identification/Isolation and FDL Flight Director Loop FDLN Feedline FDM Flight Data Manager FDM Frequency Data Multiplexer FDM Frequency Division Multiplexing FDM Frequency division multiplexer FDO Flight Dynamics Officer FDO Fee Determination Official FDOR Flight Design Operations Review FDR Final Design Review FDR Flight Data Recorder FDR Functional Design Review FDRI Flight Director Rate Indicator FDS Flight Design System FDS Flight Dynamics Simulator FDS Flight Dynamics Software/System FDS Fluid Distribution System FDS Functional Design Specifications FDS Flight Design and Scheduling FDSC Flight Dynamics Situation Complex FDSC Flight Dynamics Simulation Complex FDU Fluid Distribution Unit FDX Full Duplex FEA Failure Effects Analysis FEAT Final Engineering Acceptance Test FEB Forward Equipment Bay FEC Field Engineering Change FEC Forward Events Controller FED Flight Events Demonstration FEDP Facility and Equipment Design Plan FEID Flight Equipment Interface Device FEID Functional Engineering Interface Device FEM Finite Element Method FEMCPL Facilities and Envir- Measurement Comp. Parts List FEP Floral Ethel Propane FEP Fluorinated Ethylene Propylene FEP Front End Processor FERD Facility and Equipment Requirements Document FES Flight Element Set FES Flash Evaporator System FES Flash evaporator system FESL Failure Effects Summary List FET Field Effect Transistor FET Flight Elapsed Time FEWG Flight Evaluation Working Group FF Flip Flop FF Free Flight FF Flight Forward FF Flight forward FFBD Functional Flow Block Diagram FFC Final Flight Certification FFD Fixed Format Display FFD Functional Flow Diagram FFM Free-Flying (Experiment) Module FFP Firmed Fixed Price FFTO Free-Flying Teleoperator FH Flex Hose FHC Flight Half Coupling FHD Fixed Head Disk FHF First Horizontal Flight FHO Failed Handover FHP Fuel High Pressure FHS Forward Heat Shield FI Flight Instrumentation FI Formal Inspection FIAR Failure Investigation Action Report FID Failure Identification FID Flight Implementation Directive FIDO Flight Dynamics Officer FIE Flight Instrumentation Engineer FIFO First in-First out (High Speed Data Buffers) FIG Figure FIIG Federal Item Identification Guide FIL Filament FILE Future Identification and Location Experiment FIO Furnished and installed by Others FIR Fuel Indicating Reading FIS Facility Interface Sheets FIT Fault Isolation Test FITH Fire-in-the-Hole FIV Fuel Isolation Valve FKB Flight Display Keyboard FL Fail FL Feed Lines FL Flowline FL Forward link FL MECH Fluid Mechanical FLAP Flight Application Software FLC Federal Library Committee FLC Forward Load Control FLCA Forward load controller assembly FLD Field FLEX Flexible FLG Flag FLG Flange FLLK Frustum Lifting Lug Kit FLN Fuel Line FLOT Flotation FLP Flap FLPS Flight Load Preparation System FLR Flare FLR Failure FLS Flight Surgeon FLSC Flexible Linear Shaped Charge FLT Flight FLT Floating FLTR Filter FLTSATCOM Fleet Satellite Communications FLUOR Fluorescent FLW Fellows (TACAN Station) FM Frequency Modulation (Modulated) FM Flight Model FM "Frequency modulation, frequency modulated" FM/FM Frequency Modulation/Frequency Multiplexing FM/PM Frequency Modulation/Phase Modulation FMA Failure Mode Analysis FMAHTS Flight Manifest and Hardware Tracking System FMANTS Flight Manifest FMC Food Machinery Corporation FMCF First Manned Captive Flight FMDM Flex Multiplexer/Demultiplexer FMEA Failure Modes and Effects Analysis FMEC Forward Master Events Controller FMECA "Failure Mode, Effects, and Criticality Analysis" FML Fault Message Line FML Final Materials List FMO Flight Medical Officer FMOF First Manned Orbital Flight FMOFEV First Manned Orbital Flight with EVA FMOFPL First Manned Orbital Flight with Payload FMR Field Modification Request FMR Function Max Rate FMS Food Management System (Subsystem) FMSP Frequency Modulation Signal Processor FMSP FM signal processor FMT Flight Management Team FMX FM Transmitter FND Facility Need Date FNL Final FNT Failure Notification Telex FO Objective FO Fail Operational FO Fiber Optics FO/FS Fail-Operational/Fail-Safe FOB Flight Operations Building FOB Free on Board FOC Focus FOC Full Operational Capability FOD Flight Operations Directorate (JSC) FOE Flight Operations Engineer FOF First Orbital Flight FOF First Operational Flight FOF Flight Operations Facilities FOIH Flight Operations Integration Handbook FOM R Flight Operations management Room FOP Flight Operations Plan FOP Flight Operations Panel FOP Follow on Production FOPG Flight Operations Planning Group FOPP Follow on Parts Production FOPS Flight Operations Planning Schedule FOR Flight Operations Review FOR Force FORTRAN Formula Translation FOS Flight Operations Support FOSDIC Film Optical Sensing Device for Input to Computers FOSO Flight Operations Scheduling Officer FOSP Flight Operations Support Personnel FOST Flight Operations SUPPOrt Team FOT Flight Operations Team FOV First Orbital Vehicle FOV Field of View (Vision) FP Fuel Pressure FP Function Path FP Fine Pointing FP Fixed Point FP Flight Plan FP Freezing Point FPB Fuel Preburner FPBOV Fuel Preburner and Oxidizer Valve FPC Forward Power Controller FPC Fluids Pressure Control FPCA Forward Power Control Assembly FPCA Forward power controller assembly FPE Functional Program Element FPEG Fast Pulse Electron Gun FPHB Flight Procedures Handbook FPIF Fixed Price Incentive Fee FPL Full Power Level FPL Full Power Load FPM Folding Platform Mechanism FPM Feet per Minute FPOV Fuel Preburner Oxidizer Valve FPP Freon Pump Package FPPR Fixed Price with Price Revision FPR Flight Performance Reserve FPS Feet per Second FPS2 Feet per second squared FPS Flight per Second FPS Forward Power Supply FPS Frames Per Second FPU Floating Point Unit FPV Flow Proportioning Valve FQ Flight Qualification FQI Flight Qualification Instrumentation FQR Flight Qualification Review FQR Flight Qualification Recorder FQT Formal Qualification Test FR Flight Rule FR Firing Room FR Frame FRAGNET Fragmented Network FRB Failure Review Board FRC "Flight Research Center, California" FRCI Fibrous refractory composite insulation FRCS Forward Reaction Control System (Subsystem) FRCS Forward reaction control system FRD Flight Requirements Document FRE Flight Related Element FRE Format Request Element FREO DIV FrequencY Divider FREQ Frequency FREQ CONV Frequency Converter FRF Flight Readiness Firing FRFT Flight Readiness Firing Test FRJD Forward Reaction Jet Driver FRL Fuselage Reference Line FRL Frame Reference Line FRMT Format FRP Fuselage Reference Plane FRR Flight Readiness Review FRRID Flight Readiness Review Item DescriPtion FRRID Flight Readiness Review Item DisPosition FRSI Felt Reusable Surface Insulation FRSI Flexible reusable surface insulation FRT FrequencY ResponseTest FRT Flight Readiness Test FRT Flight Readiness Training FRZR Freezer FS Functional Schematic FS Freon Servicer FS Fail-Safe FS Flight System FS Fault Summary FS Federal Specification FS Fire Suppression FS Fail to Sync FS Full Scale FS Fuselage Station FSAA Flight Simulator for Advanced Aircraft FSC Federal Stock Classification FSCM Federal Supply Code for Manufacturers FSCP Fire Sensor Control Panel FSD Flight Simulation Division (JSC) FSD Full Scale Development FSE Flight Simulation Engineer FSF First Static Firing FSGS Flare/Shallow Glide Slope FSI Final Systems installation FSIM Functional Simulator FSIWG Flight System Interface Working Group FSK Frequency Shift Keyed (Keying) FSL Flight Systems Laboratory FSL Flight Simulation Laboratory FSLO First Spacelab Payload FSLT First Sea Level Test FSM Fuel Supply Module FSN Federal Stock Number FSO Functional Supplementary Objective FSOH Flight Support Operations Handbook FSP Fault Summary Page FSR Final System Release FSR Flight Specific Requirements FSRR Flight System Readiness Review FSRR Flight Software Readiness Review FSRS Flight System Recording System FSS Field Spectrometer System FSS Flight Systems Simulator FSS Flight Support System FSS Fire Suppression System FSS Fixed Service Structure FSS Flight Support Station (for MMU) FSS Flight Support Structure FSS Fixed service structure FSSR Functional Subsystem Software Requirements FSSR Flight Systems Software Requirements FSTE Factory Special Test Equipment FSU Freon Servicing Unit FSW Flight Software FT Feet FT Flight Team FT Flight Test FT Formal Training FT Functional Test FT/SEC Feet per Second FT&C Formal Training and Certification FTA Flight Test Article FTA Fault Tree Analysis FTA Fatigue Test Article FTC Flight Test Conductor FTC Florida Test Center (MDAC) FTE Factory Test EquiPment FTE Flight Test Engineer FTE Forced Test End FTIS Flight Test Instrumentation System FTO Functional Test Objective FTO Flight Test Objective FTOH Flight Test Operations Handbook FTOH Flight Team Operations Handbook FTP Flight Test Procedure FTP Functional Test Program FTP Function Test Progress FTP Full Throttle Position FTR Functional Test Requirement FTR Flight Test Requirement FTRD Functional Test Requirements Document FTRD Flight Test Requirements Document FTS Federal Telecommunications System FTS Flight Test Station FTS Flight Test System FTS Functional Test Specifications FU Flight Unit FU Fuel FUB Forward Utility Bridge FUD First Use Date FUNC Function FUNCT Functional FUO Follow-up Output FUS Fuselage FUS/LF "Fuselage, Lower Forward" FUS/UF "Fuselage, Upper Forward" FUSLG Fuselage FV Front View FV FlighL Version FVF First Vertical Flight FVMS Fluid Volume Measurement System FVV Facility Verification Vehicle FW Flag Word FW Fuel Wasting FWB Fahrenheit Wet Bulb FWD Forward FWD HT SHLD Forward Heat Shield FWG Facility Working Group FWW "Food, Water, and Waste" FWWM "Food, Water, and Waste Management" FWWMS "Food, Water, and Waste Management System (Subsystem)" FXD Fixed FY Fiscal Year Fl Fault Identification [G] G Giga (Billion) G Gravity G Units of Gravitational Force G IWG Ground Interface Working Group G LOW Gross Lift-Off Weight G LOW Ground Lift-Off Weight G CCC Ground Control Computer Center G F&P "Gases, Fluids, and Propellants" G&A General and Administrative G&C Guidance and Control G&N Guidance and Navigation G&NGuidanc and navigation G&NS Guidance and Navigation Subsystem G-11 Gulfstream 11 (Shuttle Training Aircraft) G-A Ground-to-Air G-G Ground-to-Ground G-MEM General Memory G-MEM GPC-Memory G-V Gravity-Velocity G/A Ground-to-Air G/E Graphite Epoxy G/G Ground-to-Ground G/S Guided steering G/T Antenna Gain-to-Noise Temperature Ratio G02 Ga G02 Gaseous Oxygen GA Gage GA General Assembly GA Glide Angle GA Gyro Assembly GA&CS Ground Acquisition and Command Station GAC Ground Attitude Control GAC Grumman Aerospace Corporation GACU Ground Air Conditioning Unit GACU Ground Avionics Cooling Unit GAIN Graphic Aids for investigating Networks GAM Gamma GAO General Accounting Office GAP GOAL Automatic Procedure GAPL Group Assembly Parts List GAS Get-Away Special GASPI Guidance Attitude Space Position Indicator GATP Ground Acceptance/Article Test Procedure GATT Gate Assisted Turnoff Thyristor GBI Grand Bahama Island GBL Government Bill of Lading GBR Glass Bead Rating GBS Ground Based Software GC Gigacycles (1000 Megacycles) GC Ground Control GC Guidance Control GC Gyrocompassing GCA Ground Controlled Approach GCC Ground Communications Coordinator GCC Ground Control Center GCCO Ground Control Checkout GCD "Gyrc)-Compass, Desired Cluster Orientation" GCDC Ground Checkout Display and Control GCDCS Ground Checkout Display and Control System GCE Ground Checkout Equipment GCF Ground Communications Facility GCHX Ground Cooling Heat Exchanger GCI Ground Controlled Interception GCIL Ground Control Interface Logic GCIL Ground command interface logic GCILC Ground Command Interface Logic Controller GCILU Ground Control Interface Logic Unit GCL Ground Coolant Loop GCL Ground Control Landing GCN Ground Control Network GCN Ground Communications Network (A/G Worldwide Net) GCO Ground Checkout GCOS General Computer Operational System GCOS Ground Computer Operating System GCR Ground Controlled Radar GCS Guidance Cutoff Signal GCS Ground Communications System GCTS Gas Component Test Stand GCTS Ground Communication(s) Tracking System GCU Gyro Coupling Unit GCU General Control Unit GCU Generator Control Unit GCU Ground Cooling Unit GCV Gaseous Oxygen Control Valve GD Guard GDA Gimbal Drive Actuator/Assembly GDBS Generalized Data Base System GDC General Dynamics Convair GDC Gyro Display Coupler GDP Generalized Documentation Processor GDS "Goldstone, California (STDN)" GDS GNC Dynamic Simulator GDSD Ground Data SYstems Division GDSM Ground Data Systems Manager GDSO Ground Data Systems Officer GDSSR GDSD Staff Support Room GDX "Goldstone, CA (STDN Site, 2nd Antenna)" GE General Electric GECALL GCOS Program Element Name GEDAC General Electric Detection and Automatic Correction GEN "Generate, Generator" GENOPAUSE Geodetic Satellite in Polar Geosynchronous Orbit GEOD Geodetic GEOSEPS General Summary Edit Program GEOSEPS Geosynchronous Solar Electric Propulsion Stage GERT Graphical Evaluation and Review Technique GES Goddard Experiment SuPport System GESYOT GCOS Program Element Name GET Ground Elapsed Time GETI Ground Elapsed Time of Ignition GETIL Ground Elapsed Time of Landing (for TIG of GETIL Abort Burn) GETS Ground Equipment Test Sets GF Gage Factor GFAE Government Furnished Aircraft Equipment GFAE Government Furnished Aerospace Equipment GFD Government Furnished Data GFE Government Furnished Equipment GFM Government Furnished Material GFP Government Furnished Property GFRP Glass Fiber Reinforced Plastics GFRP Graphite Fiber Reinforced Plastics GFS Government Furnished Software GFY Government Fiscal Year GG Gravity Gradient GG Gas Generator GH2 Gaseous Hydrogen GH2 Gaseous hydrogen GHA Greenwich Hour Angle GHA General Housekeeping Area GHC Ground Half Coupling GHX Ground Heat Exchanger GHe Gaseous Helium GHz Gigahertz GIA GPC Interface Adapter GIDEP Government-industry Data Exchange Program GIE Ground Instrumentation Equipment GIM Generalized Information Management GIRD Ground Integration Requirements Document GITG Ground Interface Technical Group GLAADS Gun Low Altitude Air Defense System GLC Generator Line Contractor GLD Glide Slope GLL Galileo GLP Goal Language Processor GLRSHLD Glare Shield GLS Ground Launch Sequence (Sequencer) GLY Water-Glycol Mixture GLY Glycol GM Gaseous Mixture GM Geometric Mean GMAL General Electric Macro Assembly Language GMBL Gimbal GMCL Ground Measurements Command List GMIL Sp GMIL Spaceffight Tracking and Data Network (STDN) GML Ge GML General Measurement Loop GMMC Gr GMMC Ground Master Measurements List GMN Go GMN Gorman (TACAN Station) GMT Greenwich Mean Time GMT Gr GMT Greenwich Mean Time GN Ga GN Gain GN&C "Guidance, navigation and control" GN&C Gu "GN&C Guidance, Navigation, and Control" GN2 Gaseous nitrogen GN2 Ga GN2 Gaseous Nitrogen GNC Gu GNC Guidance and Navigation COmPuter GNCFTS GN GNCFTS GN&C Flight Test Station GNCIS GN GNCIS GN&C Integration Simulator GNCS Gu GNCS Guidance and Navi-oation Control System GNCTS GN GNCTS GN&C Test Station GND Gr GND Ground GND C/0 Gr GND C/0 Ground Checkout GNP Gr GNP Gross National Product GO Ge GO General Order GO2 Gaseous oxygen GOAL Gr GOAL Ground Operations Aerospace Language GOC Gr GOC Ground Operations Coordinator GOCA Gr GOCA Ground Operations Control Area GOE Gr GOE Ground Operating EquiPMent GOES Ge GOES Geostationary Operational Environment Satellite GOM KS GOM KSC Ground Operations Manager at DFRC or WSMR GOMMS Gr GOMMS Ground Operations and Material Management System GOMS Gr GOMS Ground Operations Management System GOP Gr GOP Ground Operations Panel GOPG Gr GOPG Ground Operations Planning Group GOR Gr GOR Ground Operations Review GORP Gr GORP Ground Operations Requirements Plan GORS Gr GORS Ground Observer RF System GOSS Gr GOSS Ground Operations Support System GOWG Gr GOWG Ground Operations Working Group GOX Ga "GOX Gaseous Oxygen (GO,)" GP Group GP General Purpose GP Ge GP General Publication (RSC) GPA General Purpose Amplifier GPAS General PurPose Airborne Simulator GPBIM General Purpose Buffer interface Module GPC General Purpose Computer GPC Gel Permeation Chromatograph GPC General-purpose computer GPCB GOAL Program Control Block GPD Gimbal Position Display GPH Gallons per Hour GPI Gimbal Position Indicator GPI Ground Position Indicator GPL General Purpose Laboratory GPL Goal Processing Language GPM Gallons per Minute GPME General Purpose Mission Equipment GPRN GOAL Test Procedure Release Notice GPS Global Positioning System GPS Gallons per Second GPS General Processing Subsystem GPS Global Positioning Satellite GPS Ground Power Supply GPS Ground Processing Simulation GPSS General Purpose System Simulator GPTE General Purpose Test Equipment GPU Ground Power Unit GPUR GOAL Test Procedure Update Request GR Ground R@le GRE Gamma Ray Explorer GRID Graphic Retrieval and Information Display GRN Green GRO Gamma Ray Observatory GRTLS Glide Return to Launch Site GRTLS Glide Return to Landing Site GS Ground Station GS Ground System GS Ground Speed GS Gas Servicer GS Glide Slope GS Glide slope GSA General Services Administration GSAT General Satellite (STS) GSCU Ground Service Cooling Unit GSDL Ground Software Development Laboratory GSE Ground Servicing Equipment GSE Ground Support Equipment GSE Ground support equipment GSEL Ground Support Equipment List GSFC "Goddard Space Flight Center (Greenbelt, MD)" GSFC Goddard Space Flight Center GSI Government Source Inspection GSI Glide Slope Indicator GSI Glide slope indicator GSIU Ground Standard Interface Unit GSO Ground Support Office GSO Ground Support Operations GSO Ground Systems Operations GSS Ground Support System GSS Ground Support Software GSSA Ground Support Systems Activation GSSC Ground Support Systems Contractor GSSC Ground Support Simulation Computer GSSI Ground Support System Integration GST Ground System Test GSTAR General Satellite (ELV) GSTDN Ground Spacecraft Tracking and Data Network GSTDN Ground Space Flight Tracking and Data Network GSTDN Ground space flight tracking and data network GSTF Ground Systems Test Flow GSU Gas Servicer Unit GSVP Ground Support Verification Plan GT Gyro Torque GT Ground Test GT Greater Than GT Ground Team GT&A Ground Test and Acceptance GTA Ground Test Access GTA Ground Test Article GTA Gas Tungsten Arc GTA Ground Torquing Assembly GTC Glycol Trim Console GTC Ground Test Conductor GTCU Ground Thermal Conditioning Unit GTI Ground Test Instrumentation GTI Grand Turk Island GTM Ground Team Manager GTM Ground Test Motor GTS General Test Support GTS GN&C Test Station GTS GNS Test Station GTU Glycol Trim Unit GUCP Ground Umbilical Carrier Plate GUID Guidance GUIDO Guidance Officer GUL GSE Utilization List GUSB Guided Unified S-Band GVA GOX Vent Arm GVO Gaviota (TACAN Station) GVT Ground Vibration Test GVTA Ground Vibration Test Article GW Gross Weight GWA General Work Area GWM Guam (STDN) GWT Ground Winds Tower GYM "Guaymas, Mexico (Remote Site)" GYRO Gyroscope GYROA Gyro A GYROCOMP Gyrocompassing Geosynchron Geosynchronous Operational Environmental Satellite Ground Oper Ground Operations Review Panel [H] H Al H AlHazardous (Task Classification) H Al H Altitude H Al H AlAltitude Rate H Al H AlHead H Al H AlHenry (Si Unit) H Al H AlHigh H Al H AlHorizontal H Al H AlHot H Al H AlHours H Al H AlMomentum H 2 Hydrogen H 20 Water H M Hinge Mount H /'E Heat Exchanger H 1ST History H EPA High Efficiency Particle Air (Filter) H EPA High Efficiency Particle Accumulator H LTL High Level Test Language H-CITE Horizontal-Cargo Integration Test Equipment H/L Hardline H/O Handover H/S Heat Shield H/S IR Hardware/Software Integration Review H/T Heat Treat H/W Hardware H2 Hydrogen HA Hazard Analysis HA Apogee Altitude HA High Altitude HAA High Altitude Abort HAB Habitation HAC Heading Alignment Cylinder HAC Heading Alignment Circle HAC Heading Alignment Cone HAC Heading alignment cylinder HAD Heat Actuated Device HAFB Holloman Air Force Base HAINS High-accuracy inertial navigation system HAK Horizontal Access Kit HAL High Order Assembly Language HAL High Order Articulated Language HAL Houston Aerospace Language HAL/S High Order Programming Language for Spacelab Usage HAL/S High Order Assembly Language/Shuttle HAL/S Computer HAL/S High Order Assembly Language for Shuttle Flight HAL/S High-order assembly language/ shuttle HAM Height Adjustment Maneuver HAP Hardware Allocation Panel HAS Hydrogen Actuation System HAS Hydraulic Actuation System HAS Holddown Alignment Support HAST High Altitude Supersonic Target HAW Hawaii (STDN) HB High Bay HB Handbook HBR High Bit Rate HBT Heflex Bio-Engineering Test HBW Hot Bridge Wire HC Hybrid Computer HC Head Count HC Hand Controller HCED Hand Controller Engage Driver HCF High Cycle Fatigue HCF HIM Configuration File HCL Horizontal Centerline HCM Hard Copy Module HCMM Heat Capacity Mapping Mission HCR High Cross Range HCSI "Hughes Communications Services, Inc." HCSL Hybrid Computation and Simulation Laboratory HCU Hydraulic Charging Unit HCV Hydrogen Check Valve HD Hoiddown HD Horizontal Drain HD Hydrogen Drain HD Highly Desirable HD Heavy Duty HDA Housekeeping Data Acquisition HDC HYbrid Device Controller HDC Hasselblad Data Camera HDDR High-Density Digital Recorder HDG Heading HDP Holddown Post HDQ Headquarters HDR High Data Rate HDR High data rate HDRA High Data Rate Assembly HDRM High Data Rate Multiplexer HDRR High Data Rate Recorder HDRR High-data-rate recorder HDRSS High Data Rate Storage System HDS Hardware DescriPtion Sheet HDST Headset HDW Hardware HDWE Hardware HE High Energy Astrophysics HE Heat Exchange (Exchanger) HEAO High Energy Astronomy Observatory HEAP High Energy Aim Point HECV Helium Check Valve HEG Helium Gage HEGV Helium Gage Valve HEM Hitchhike Experiment Module HEMI Hemispherical (S-Band Antenna) HEMV Helium Manual Valve HEO High Energy Orbit HER HIM EquiPment Rack HERSCP Hazardous Exposure Reduction and Safety Criteria Plan HESS High Energy Squib Simulator HETM Hybrid Engineering Test Model HEX Heat Exchanger HEX Hexadecimal HEX Hexagon HF High Frequency HF Horizontal Flight HF Hot Firing HF Hydrogen Fill HF Hyperfiltration HF Hard Failure HFA High Frequency Accelerometer HFC Heat Flow and Convection HFC Hydraulic Flight Control HFCT Hydraulic Flight Control Test HFCV Helium Flow Control Valve HFDS Hydrogen Fluid Distribution System HFE High Frequency Executive HFM Hollow Fiber Membrane HFMU High Fidelity Mockup HFO High Frequency oscillator HFS Horizontal Flight Simulator HFT Horizontal Flight Test HFTF Horizontal Flight Test Facility HFTS Horizontal Flight Test Simulator HFX High Frequency Transceiver HG High Gain HGA High Gain Antenna HGDS Hazardous Gas Detection System HGM Hot-Gas Manifold HGR Hangar HGR&SPTFAC Hangar and Support Facility HGS Hydrogen Gas Saver HGV Hydrogen Gas Valve HGVT Horizontal Ground Vibration Test HHC Hammer Head Crane HHMU Hand Held Maneuvering Unit HI High HI "Honeywell, Inc." HIC "Hickam Air Force Base, Hawaii (Deorb OPT site)" HID Hardware Interface Device HID HIM Interface Distributor HIM Hardware Interface Module HIP Hardware Interface Program HIP Hardware interface program HIPC High Chamber Pressure HIPO Hierarchical Input/Process Output HIPO Hierarchy Plus InPut/Process/Output HISAM Hardware Initiated Standalone Memory HITS High Rate Multiplexer InPut/Output Test System HIU Headset Interface Unit HIU Headset interface unit HIV Helium Isolation Valve HK Housekeeping HL High Level HL Hardline HL Heel Line HL Hydrogen Line HL Hinge Line HLAL High Level Assembler Language HLD Hold HLDS Hydrogen Leak Detection System HLMT Hel met HMA Hypergot Maintenance Area HMC Hypergolic Maintenance and Checkout HMC Hybrid Microcircuit HMCC Hypergolic Maintenance and Checkout Cell HMCF Hypergolic Maintenance and Checkout Facility HMCF Hypergolic Maintenance and Checkout Facility HMD Helmet-Mounted Display HMF Horizontal Mating Facility HMF Hypergot Maintenance Facility HMP Hydrozene Monopropeflant (RCS Propellant) HMS History Memory System HMU Hardware Mockup HMV Hydrogen Manual Valve HNDLER Handler HNGR Hangar HO Hydrogen-OxYgen HOL High Order Language HOLC High Order Language Computer HORIZ "Horizon, Horizontal" HOS High Order Software HOSC Huntsville Operations Support Center HP Handling Procedure HP Hewlett Packard HPF Horizontal Processing Facility (O&C) HPFT High-pressure fuel turbopump HPFTP High Pressure Fuel Turbopump HPG High Pressure Gas HPGS High Pressure Gas System HPI High Performance insulation HPOP High Pressure Oxidizer Pump HPOT High Pressure Oxidizer Turbopump HPOT High-pressure oxidizer turbopump HPOTP High Pressure Oxidizer Turbopump HPPF Horizontal Payloads Processing Facility HPR Hydrogen Pressure Regulator HPRV Hydrogen Pressure Relief Valve HPS Hydraulic Power SYstem HPT High Pressure Test HPU Hydraulic Power Unit HPU Hydraulic power unit HPV High Pressure Valve HQ Headquarters (HDQ preferred) HQR Handling Qualities Rating (Cooper-Harper) HR Historical Record HR Hour HRAA High Rate Acquisition Assembly HRC Hasselblad Reflex Camera HRD High Rate Dosimeter HRD High-rate dosimeter HRDA High Rate Data Assembly HRDM High Rate Demultiplexer HRDR High Rate Digital Recorder HRDS High Rate Data Station HRIR High Resolution Infrared Radiometer HRL Horizontal Reference Line HRM High Rate Multiplexer HRM High-rate multiplexer HRPS Hazard Reduction Precedence Sequence HRS Hours HRSI High Temperature Reusable Surface Insulation HRSI High-temperature reusable surface insulation HRT High Resolution Tracker HS Horizon Sensor HS High Speed HS Heat Shield HS-C Hamilton Standard CO Absorbent Material HSC Hardware/Software Coordination HSCU Hydraulic SUPPly and Checkout Unit HSD HoriZontal Situation Display HSD High Speed Data HSD Hamilton Standard Division HSDL High Speed Data Line HSF Hypergot Servicing Facility HSG High Sustained Gs Acceleration HSI Horizontal Situation Indicator HSI Horizontal situation indicator HSK Horizontal Sling Kit HSL Hardware Simulation Laboratory HSNG Housing HSP Health Stabilization Program HSP High Speed Printer HSR Hardware Status Register HSS High Speed Reader HSS Hydraulic Subsystem Simulator HSS High Stress Strain HSTP Hard Stop HSU Helium Service Unit HT Heat Transfer HT Height HT High Technology HTC Hybrid Technol Ogy ComPuter HTEXCH Heat Exchanger HTG Heating HTLL High Test Level Language HTM High Temperature HTPB Hydroxyl Terminated Polybutadiene (Propellant) HTR HydroxYl Terminated Polybutyiene HTR Heater HTS Heat Transfer System HTS Heat Transport Section HUD Head Up Display HUD Head-up display HUDE Head Up Display Electronics HUL Hardware Utilization List HUM Humidity HUT Hard Upper Torso HV Hydrogen Vent HV High Voltage HV High Velocity HVAC "Heating, ventilating, and Air Conditioning" HVDS Hypergolic Vapor Detection System HVPS High Voltage Power Supply HVR Hover HVSF Honeywelf Verification Simulation Facility HVSL "Holidays, Vacation, and Sick Leave" HW Ha rd wa re HW Hotwire HW Headwind HW/SW Hardware/Software HWWS Hyperfiltration Wash Water Recovery System HX Heat Exchanger HXIS Hard X-ray Imaging Spectrometer HYD HYdraulics HYD Hydraulic Subsystem HYG L Hypergolic HYPACE Hybrid Programmable Attitude Control Electronics He Helium Hg Mercury HiRAP High-resolution accelerometer package High Pressu High Pressure High Ratio Multiplier Hydrogen Purge Hydrogen Re Hydrogen Relief Hz Hertz (Cycles per Second) [I] I NTC/0 I NTC/0Integrated Checkout I LAS Instrument Landing Approach System I LSP Integrated Logistics Support Plan I DAC Integrated Digital-Analog Converter I DAS Integrated Data Acquisition System I DPS Interface Digital Processor I ECM Induced Environment Contamination Monitor I ECO Inboard Engine Cutoff I LCCS Integrated Launch Control and Checkout System I D&CA Inverter Distribution and Control Assembly I F Intermediate Frequency I-load Initial-load IACS Inertial Attitude Control System IAD Interface Agreement Document IAD Interface Analysis Document IAL Immediate Action Letter IAL International Algebraic Language IARS Independent Air Revitalization System IAS Indicated Airspeed IAS Integrated Avionics System IAS Impact Assessment Sheet IASS Inverter/ATCS Support Structure IAT Integrated Avionics Test IAV Inventory Adjustment Voucher IB Inert Building IB Inboard IB Instruction Book IBF Internally Blown Flap IBM International Business Machines IC Intercomputer communication IC/ES Intercommunication/Emergency Station ICA Item Change Analysis ICAO International Civil Aviation Organization ICAO International Civil Aviation Organization ICAR Investigation and Corrective Action Report ICB Interim Change Bulletin ICB Interrupt Control Block ICC Intercomputer Channel ICC Intercomputer Communication ICC Interface Control Chart ICC Interstate Commerce Commission ICCB Integrated Change Control Board ICCP Interface Coordination and Control Procedure ICD Interface Control Document ICDR Incremental Critical Design Review ICDU Inertial CouPling Data Unit ICE Input Control Element ICF interface Control Function ICG In-Flight Coverall Garment ICH Interchanger ICMT Intercontract Material Transfer ICP ICS Control Program ICR Instruction Change Request ICT Influence Coefficient Tests ICTC interface Control Tool ing ICWG Interface Control Working Group ID Identification IDA Interface Display Assembly IDB lnsuit Drink Bag IDC IMBLMS Digital Computer IDC Integrated Displays and Controls IDC Interface Document Control IDCA Inverter Distribution and Control Assembly IDD Interface Definition Document(s) IDE Initial Design Evaluation IDG Integrated Drive Generator IDI Instrumentation Data Items IDMM Intermediate and Depot Maintenance Manual IDO Interdivisional Operations IDP Integrated Data Processor IDR Intermediate Design Review IDR Interim Discrepancy Report IDR Initial Design Review IDRD Internal Data Requirement Description IDRD Information Definition Requirements Document IDS Interface Data Sheet IDS Item Description Sheet IDSD Institutional Data System Division (JSC) IDSO Interdivisional Sales Order IDT I-load Data Tape IDTA Interdivisional Technical Agreement IDU Interface Demonstration Unit IDWA Interdivisional Work Authorization IE Industrial Engineering IEA Integrated Electronic Assembly IEA Integrated electronic assembly IECS Igloo Environment Control Subsystem IED Interacting Equipment Documents IEF Isoelectric Focusing IEP Instantaneous Effective Photo Cathodes IF Integration Facility IFA In-Flight Analyses IFASC Integrated Functions Assessment Steering Committ IFB Invitation for Bid IFM In-Flight Maintenance IFO Information Systems Office IFOT In-Flight Operations and Training IFR Instrument Flight Rules IFRU In-Flight Replacement Unit IFT In-Flight Test IFTM In-Flight Test Maintenance IFTS In-Flight Test System IFU Interface Unit IG Igloo IGA Inner Gimbal Angle IGAX Inner Gimbal Axis IGDS Iodine Generating and Dispensing SYstem IGM Interactive Guidance Mode IGN "Ignition, Ignite" IGOR Intercept Ground OPtical Recorder IGS Inertial Guidance System IGSE In-Space Ground SUPPort Equipment IGV Inlet GUide Valve/Vanes IH/SR Integration Hardware and software Review IHP Indicated Horsepower IHTV Interim Hypersonics Test Vehicle IHX Interloop Heat Exchanger IITCS igloo Internal Thermal Control Section ILA Instrument Landing Approach ILC International Latex Corporation ILC Initial Launch Capability ILLUM Illuminate ILP Integrated Logistics Panel ILS Integrated Logistics System ILS Instrument Landing System ILS Integrated Logistics Support ILS/LAR Integrated Logistics System and Logistics Assess ILS/LAR Review ILSSE Integrated Life Science Shuttle Experiments IM Information Management IMBLMS Integrated Medical Behavioral Laboratory Measuremen IMBLMS System IMCP Integrated Monitor and Control Panel IMD Intermediate IMDB Integrated Maintenance Data Base IMF Inventory Master File IML Inside Mold Line IMP Initial Memory Protection IMPD Impedance IMPLS Impulse IMU Inertial measurement unit IN Information Systems Directorate (KSC) IN Inlet INSTR Instruct INSTR "Instrument, Instrumentation" INSTRUM Instrumentation Subsystem INT Internal INT Integrated Test INT Intensity INTASAT Instituto Nacional De Technica Aeroespacial Satell INTCHC:iR Interchanger INTCHG Interchange INTCP Intercept INTEGR "Integrate, Integration" INTELSAT International Telecommunications Satellite Organiz INTEROG Interrogate INTF Interface INTG Integration INTLK Interlock INTR Interior INTRG Interrogate INTRLVR Interleaver INTRPT Interrupt INTV Interim Hypersonics Test Article INTVL Interval INTVLM Intervalometer INV Inverter INV MG INV MGT Inventory Management IOA Input/Output or Assembly IOA input/Output Adapter IOB InPut/Output Box IOB InPut/Output Buffer IOB InPut/Output Buffer (if Bus IOBPS Input/Output Box and Peripheral Simulator IOE Input/Output Error Log Table IOF Initial Operational Flight IOP Input/output processor IOPL Integrated Open Problem List IOQE Input/Output C)ueue Element IP Inertial Processing IP InstruMentation PCM Data Bus IP Instrumentation Payload IP Identification of Position IP Intermediate Pressure IP Intermediate Pallet IP Igloo Pallet IP Instructor Pilot IP Impact Point IP Instrumentation/pulse code modulation master unit data bus IPACS Integrated Power and Attitude Control System IPAD Integrated Program for Aerospace Vehicle Design IPB Illustrated Parts Breakdown IPB Illuminated Push Button IPC Intermittent Positive Control IPCL Instrumentation Program and Component List IPD Information Processing Division IPDR Incremental Preliminary Design Review IPE Industrial Plant Equipment IPF IUS Processing Facility IPL Initial Program Load IPL Indentured Parts List IPL Initial program load IPR Interim Problem Report IPS ISA Interim Stowage Assembly IPS Interconnecting Station IPS is Installation Support IPS IRV Isotope Reentry Vehicle IPS IRU Inertial Reference Unit IPS ISD Instructional Systems DeveloPment (USAF) IPS isc Initial Software Configuration Map IPS IRIG Inertial Rate Integrating Gyro IPS Inside Radius IPS I RTCM Integrated Real-Time Contamination Monitor IPS Inner Roll Gimbal IPS Instrumentation Power Subsystem IPS IR SPECT Infrared Spectrometer IPS I RAN) IPS IRANSAT franian Government Communications Satellite (replace IPS IRR InsPection Rejection Report IPS IRAN Inspection and Repairs as Necessary IPS IPT In-Plant Transporter IPS IR Inclination of the Ascending Return IPS Initiating Reference Document IPS IPSL Interface Problem Status Log IPS IRL Initiating Reference Letter IPS Inverter Power Supply IPS IRIS Italian Research Interim Stage IPS ips International Pipe Standard IPS Interface Requirement List IPS Interface Problem Sheets IPS Interrange Instrumentation Group IPS IRD Information Requirements Document IPS lglc)O Passive Thermal Control Section IPS IRME Initiator Resistance Measuring Equipment IPS IRG Inertial Rate Gyro IPS Infrared IPS IRIG-B Interrange Instrumentation Group B IPS Inertial Reference Integrating Gyro IPS IRN Interface Revision Notice IPS IPTCS International Pipe Thread IPS Instrument Pointing System (Subsystem) IPS Integral Rocket Ramiet IPS International Rendezvous IPS IRAR Internal Variable IPS Inches per Second ISIL Interim Support Items List ISL Inertial Systems Laboratory ISL/LAR Integrated Logistics System and Logistics Assessment ISL/LAR Review ISLM Integration Shop/Lab Manager ISOL "isolate, Isolation" ISP Instrumentation Support Plan ISP Integrated Support Plan ISP Initial Specific Impulse ISPG Institutional Support Planning GrouP ISPM International Solar Polar Mission ISR Initial System Release ISSL Initial Spares Support List ISTA Intertank Structural Test Assembly ISTB Integrated Subsystem Test Bed ISTF Integrated System Test Flow IT Installation Test IT Identification Transponder ITA integrated Test Area ITA Integrated test article ITAP Integrated Technical Assessment Panel ITC igloo Thermal Control ITE integration Test Equipment ITE Intersite Transportation Equipment ITE Instrumentation Test Equipment ITI Inspection and Test Instruction ITL "Integrate, Transfer, and Launch" ITMG Integrated Thermal/Micrometeoroid Garment ITO Integration and Test Order ITRDS Integrated Test Requirements Documents ITS Instrumentation Telemetry Station ITS Interim Teleprinter System IU Interface unit IUA Interface Unit AdaPter IUA Inertial Unit Assembly IUE Interface Unit Error Count Table IUS Inertial upper stage IVA Intravehicular Activity IVA Intravehicular activity IVAR internal Variable IVBC "Integrated Vehicle Baseline Config,ration" IVE Interface Verification EquiPr-nent IVL lntervatometer IVT Intervehicular Transfer IWBS Indirect Work Breakdown Structure IWG Investigator Working Group IWG Interface Working Group Identificat Identification Data Inertial Gu Inertial Guidance Inner Gimba Inner Gimbal Inner Glide Inner Glideslope Insertion B "Insertion Burn, OMSI" Inside Diam Inside Diameter Installatio Installation Notice Card Installatio Installation Notification Certificate Instrument Group SuPport Equipment Instrument Ground Instrument Checkout Equipment Instrumenta Instrumentation and Communication Instrumenta Instrumentation Group Interchange Interchangeability and Replacement Intercommun Intercommunication SYstem Intercommun Intercommunications Interface Tool Interface C Interface Control Drawing Interface C Interface Control Specification Interface C Interface COmPatibility Record Interface C Interface Control Unit Interface D Interface Document Interface F Interface Functional Analysis Interpretiv Interpretive Co ' Inventory C Inventory Control Point Inverter As Inverter Assembly Issuing Age Issuing Agency Iterative G Iterative Guidance Mode [J] J/M Jettison Motor JAEIC Joint Atomic Energy Intelligence Committee JAN Joint Army-Navy JAS Journal of Aerospace Science JB Junction Box JCL Job Control Language JCP Joint Power Conditions JCT Junction JED Julian Ephemeris Data JETS Joint Electronics Type (Designation) System JETT Jettison JIR Job Improvement Request JOD Joint Occupancy Data JOD Joint Occupancy Date JOIP Joint Operations Interface Procedure JOP Joint Operating Procedure JOP Jupiter Orbiter Probe-Galilee JOR Job Order Request JOVIAL Joules Own Version International Algebraic Language JPC Joint Power Condition JPIC Joint Program Integration Committee JPL Jet Propulsion Laboratory JPL Jet Propulsion Laboratory JPOC JSC Payload Operations Center JRB Joint Review Board JSC Johnson Space Center JSL Jet Select Logic JSLWG Joint Spacelab Working Group JST Joint Systems Test JTA Job Task Analysis JTG Joint Training Group JURG Joint Users Requirements Group Jo Job Order Joule (SI U Joule (SI Unit) [K] K Kelvin K Kilocycle K One Thousand K&H Memory Time Value K-APM KSC Automated Payloads Plan/Requirement K-APN KSC Automated Payloads Notice K-APPS KSC Automated Payloads Project Specification K-CITEM KSC CITE Plan/Requirement K-DODM KSC DOD Plan/Requirement K-DPM KSC DOD Payloads Plan/Requirement K-DPN KSC DOD Payloads Notice K-DPPS KSC DOD Payloads Project Specification K-IUSM KSC IUS Plan/Requirement K-IUSN KSC [US Notice K-IUSPS KSC IUS Project Specification K-MMSEM KSC MMSE Plan/Requirement K-MMSEN KSC MMSE Notice K-MMSEPS KSC MMSE Project Specification K-SLM KSC Spacelab Plan/Requirement K-SLN KSC Spacelab Notice K-SLPS KSC Spacelab Project Specification K-SM KSC Shuttle Management Document K-SPN KSC Shuttle Project Notice K-SPS KSC Shuttle Project Specification K-SSS KSC Shuttle Project Station Set Specification K-STSM KSC STS Plan/Requirement K-STSN KSC STS Notice K-STSPS KSC STS Project Specification K/S Kick Stage KAD "Kadena AB, Ryuku Islands (Deorb OPT Site)" KAPL KSC Approved Parts List KATS Kennedy Avionics Test Set KAU Kilo Accounting Unit KB Keyboard KB Kilobit KBAC Kennedy Booster Assemblv Contractor KBIM Keyboard Interface Module KBPS Kilobits per Second KBU Keyboard unit KCAS Knots Calibrated Airspeed KCRT Keyboard Cathode RaY Tube KCS Keyboard Configuration Studies KDMS Kennedy Data Management SYstem(s) KDN Kinetically Designed Nozzle KDT Keyboard and Display Test KDU Keyboard and DisPlay Unit KEAS Knots Equivalent Airspeed KHB KSC Handbook KIAS Knc)ts Indicated Airspeed KIP Keyboard Input Processor KIS Kitting Instruction Sheet KMI KSC Management Instruction KMR Kwaialein Missile Range KMS K-Words X Millions of Seconds KN Kitting Notice KNO KSC Notice KOI "Kano, Nigeria (Remote Site)" KOM KSC Organizational Manual KOM KSC Operation instruction KOPS Thousand of Operations per Second KPD KSC Program Directive KPPS KiloPulses per Second KPRD KSC Program Requirements Document KPS Kilometers Per Second KSA Ku-Band Single Access KSA Ku-band single access KSC John F. Kennedy Space Center KSC Kennedy Space Center KSCAP Kennedy Space Center Area Permit KSSS KSC Station Set Specification KT Kit KT Knots KU Keyboard Unit KUSP Ku-Band Signal Processor KUSP Ku-Band Single Processor KUSP Ku-band signal processor KYBD Keyboard [L] L Launch L Left L Length L Level L Low L Lumen L&C Laboratory and Checkout L&D Landing and Deceleration L&L Launch and Landing L&S Logistics and SuPport L&T Laboratory and Test L-BAND S-Band 390 to 1550 MHz L-L Line-to-Line L-P Low Pressure L/D Length-to-Diameter L/D Lift-to-Drag (Ratio) L/H Local Horizontal L/O Lift-off L/S LLoad SYstem L/S Landing Site L/T Load Test L02 Liquid Oxygen LA Launch Area LA Lanthanum LA Launch Abort LA Launch Azimuth LA Lightning Arrester LA Launch Aft LA Low Attitude LAAD Los Angeles Aircraft Division (Rockwell) LACB Landing Aids Control Building (SLF at KSC) LACIE Large Area Crop Inventory Experiment LACIP Large Area Crop Inventory Program LAGEOS Laser Geodynamic Satellite LAGS Launch Abort Guide Simulation LAIR Liquid Air LAIU Launch Abort Interface Unit LAN Local Area Network LAPS Left Aft Propulsion System (Subsystem) LARS Laminar Angular Rate Sensor LARSSYAA for Aircraft Analysis LARSSYAA Laboratory for Application of Remote Sensing System LASCOT Large Screen Color Television System LASV Low Altitude Supersonic Vehicle LAT Lateral LAT Latch LAT Large Angle Torque LAT Lot Acceptance Test LAT Latitude LATS LDEF Assembly and Transportation System LB Lower Brace LB Low Bay LB Load Bank LB Launch Bus LB Launch Boost LBDT Low Bay Dolly Tug LBK Left Bank LBL Left Buttock Line LBM Load Buffer Memory LBNPD Lower Body Negative Pressure Device LBR Low Bit Rate LC Left Center LC Launch Complex LC Launch Critical LC Launch Countdown LCA Load Controller (Control) Assembly LCA Launch Control Amplifier LCA Load controller assembly LCB Least Common Bit LCC Life Cycle Cost LCC Launch Control Center LCC Launch Commit Criteria LCC Launch Control Center (KSC) LCCD Launch Commit Criteria Document LCD Launch Countdown LCF LowCycle Fatigue LCG Liquid Cooled Garment LCG Liquid-cooled garment LCH LatLaunch LCH Latch LCHTF LowCYcle High Temperature Fatigue LCL Local LCM Least Common Multiple LCMS LowCost Modular Spacecraft LCO MMCUniform Central Number LCOM Logic Control OutPut Module LCR LowCross Range LCS Launch Control System LCS LauList of Command Signals LCT Launch Countdown LCU Line Coupling Unit LCUG Liquid Cooling under Garment LCVG Liquid Cooling and Ventilation Garment LCVG Liquid cooling and ventilation garment LD LatLoading Dock LD Lateral Direction LDB LauLogistics Data Bank LDB Launch Data Bus LDEC Lunar Docking Events Controller LDEF Long Duration ExPosure Facility LDG Landing LDIU Launch Data Interface Unit LDMK Landmark LDR LowData Rate LDR Low data rate LDS Landing/Deceleration Subsystem LDS "LanLanding, Deservicing, and Safing" LDS LanLoads LDT Linear Displacement Transducer LE Launch Escape LE LauLeading Edge LEA Logistics Engineering Analysis (Analyses) LEB Lower Equipment Bay LEC Lockheed Electronics Company LED Light Emitting Diode LED Light-emitting diode LEH Launch/Entry Helmet LEM Launch Escape Monitor LEM Laboratory Environment Model LEO Low Earth Orbit LER Long Eye Relief (Optics) LES Launch Equipment Shop LES Launch Escape Subsystem LESS Leading Edge Structure Subsystem LESS Leading Edge Subsystem LESS Leading edge structure subsystem LETF Launch Equipment Test Facility LETF Launch Equipment Test Facility (KSC) LF Low Frequency LF Load Factor LF Left Forward LF Launch Forward LF Launch Facility LFAF Low Frequency Accelerometer Flutter LFAM Low Frequency Accelerometer Modes LFAP Low Frequency Accelerometer Pogo LFC Large Format Camera LFO Low Frequency Oscillator LFOP Landing and Ferry Operations Panel LFRR Low Frequency Radio Range LG Landing Gear LG Length LGA Low Gain Antenna LGIU Laser Gyro Interface Unit LH Left Hand LH2 Liquid Hydrogen LH2 Liquid hydrogen LHA Local Hour Angle LHC Left Hand Circular LHCP Left Hand Circular Polarization LHCP Left Hand Circularly Polarized LHP Left Hand Panel LHS Left Hand Side LHe Liquid Helium LIB Left Inboard LIC Load Interface Circuit LID Leadless inverted Device LID Logistics Identification Document LIDAR Laser-Radar LIE Left Inboard Elevon LIM Limit LIMRC LRU Identification and Maintenance Requirements Catal LIMS Logistics Inventory Management System LIN Liquid Nitrogen LIN Linear LINJET Liquid Injection Electric Thruster LIQ Liquid LK Leak LK Lock LL Low Level LL Lever Lock LL Lower Limit LL Lower Left LL Launch and Landing LL Launch Left LL Long Line LL Long Lead LLCF Launch and Landing Computational Facilities LLI Limited Life Item LLIL Long Leadtime Items List LLOS Landmark Line-of-Sight LLP Launch and Landing Project LLPO Launch and Landing Project Office LLS Launch and Landing Site LLT Long Leadtime LM Left Mid LM Long Module LME Launch Monitor Equipment LMF Lower Mid-Fuselage LMG Left Main Gear LMK Landmark LMP List of Measurement Points LMS Logistics Master Schedules LMS Load Measurement System LMSC Lockheed Missiles and Space Corporation LN Line LN2 Liquid Nitrogen LNCH Launch LNDG Landing LNG Liquefied Natural Gas LO Lock-On LO Launch Operations LO Local Oscillator LO2 Liquid oxygen LOA Landing Operations Area LOA Launch Operations Area LOAP List of Applicable Publications LOB Line of Balance LOB Left Outboard LOC Location LOC Localizer LOC Launch Operations Complex LOCC Launch Operations Control Center LOE Line of Effort LOE Level of Effort LOE Left Outboard Elevon LOFAR Low Frequency Acquisition and Ranging LOFO Low Frequency oscillation LOGO Limit of Government Obligation LOI Lunar Orbit Insertion LOL Limit of Liability LOLI Limited Operational-Life items LON Longitude LONG Longitude LOR Lunar Orbit Rendezvous LORA Level of Repair Analysis LORAN Long Range Navigation LOS Loss of Sync LOS Loss of Signal LOS Line of Sight LOS Lift-Off Simulator LOT Lift-Off Time LOV Limit of Visibility LOV Loss of Visibility LOWG Landing Operations Working Group LOX Liquid Oxygen (LO2 LP Launch Pad LP Liquid Propellant LP Low Pressure LPD Landing Point Designator LPD Launch Procedure Document LPDM List of Physical Dimensions LPF Low Pass Filter LPFT LOPW Pressure Fuel Turboprop LPFT Low-pressure fuel turbopump LPFTP Low Pressure Fuel Turbopump LPG Last Page Generator (Distribution List Used in All OMT'S) LPG Liquid Propellant Gun LPLWS Launch Pad Lightning Warning System LPM Lines per Minute LPOP Low Pressure Oxidizer Turbopump LPOT Low-pressure oxidizer turbopump LPOTP Low Pressure Oxidizer Turbopump LPOX Low Pressure Oxygen LPR Line Printer LPS Launch Processing (Processor) System LPS Liters Per Second LPS Launch processing system LPS/CDS LPS/Central Data Subsystem LPTTL Low Power Transistor-Transistor Logic LPW Lumens per Watt LR Landing Radar LR Launch Right LR Left Rudder LR Lower Right LR/LD Line Receiver/Line Driver LRECL Logical Records of Fixed Length LRF Liquid Rocket Fuel LRO Large Radio Observatory LRR Launch Readiness Review LRSI Low Temperature Reusable Surface Insulation LRSI Low-temperature reusable surface insulation LRU Line Replaceable Unit LRU Line-replaceable unit LRV Long Range Video LRV Launch Readiness Verification LS Limit Switch LS Launch Sequence LS Landing Side LS Left Side LS Life Science LS/ST Light Shield/Star Tracker LSA Launch Services Agreement LSA Logistics Support Analysis LSAH Launch Site Accommodations Handbook LSAP Launch Sequence Applications Program LSB Lower Side Band LSB Least Significant Bit LSC Linear Shaped Charge LSCA Logistics Support Cost Analysis LSD Low Speed Data LSD Landing Ship Dock LSE Launch Support Equipment LSE Life Support Equipment LSF Laboratory Simulation Facility LSFE Life Sciences Flight Experiment LSI Large Scale Integration LSID Launch Sequence and Interlock Document LSM Life Science Module LSM I Logistics Support Management Information LSO Landing Support Officer LSO Large Solar Observatory LSP Least Significant Portion LSPDF Life Science Payloads Development Facility LSR Launch Site Recovery LSR Land Sea Rescue LSRM Life Science Research Module LSS "Landing, Separation Simulator" LSS Life Support Subsystem LSS L Life Sciences Space Laboratory LSSF Life Sciences Support Facility LSSM Launch Site Support Manager LSSP Launch Site Support Plan LSSRC Life Sciences Shuttle Research Centrifuge LSST Launch Site Support Team LST Large Space Telescope LST Large Stellar Telescope LST Launch Support Team LST Liquid Storage Tank LST Local Standard Time LSTE Launch Site Transportation Equipment LSU Life Support Umbilical LT Lead Time LT Light LT Lef t LTA Lower Torso Assembly LTD Limited LTD Lift-to-Drag LTG Lighting LTG Linear Tangent Guidance LTM Lead Time Matrix LUB Lubricate LUS Liquid Upper Stage LUT Launcher-Umbilical Tower LV Loading Valve LV Low Voltage LV Load Vertical LV Launch Vehicle LV Lift Vector LV Limit Value LVDC Launch Vehicle Digital Computer LVDT Linear Variable Differential Transformer LVDT Linear Voltage Differential Transformer LVL Level LVLH Local Vertical/Local Horizontal LVLH Local vertical/local horizontal LW Launch Window LWD Left Wing Down LWD Launch Window Display LWG Logistics Working Group LWHS Light-Weight Headset LWHS Lightweight headset LWR Lower LWS Lightning Warning System LaRC "Langley Research Center (Hampton, VA)" LeRC "Lewis Research Center (Cleveland, OH)" Li Lithium LiOH Lithium Hydroxide LiOH Lithium hydroxide [M] M LGS Microwave Landing Guidance System M LA MDM Launch Aft M LA Monochrome Lens Assembly M B/S Megabits per Second M BAC Marshall Booster Assembly Contractor M DSD Mate/Demate Stiffleg Derrick M ECCA Master Electrical Common Connector Assembly M ESA Modular Equipment Stowage Assembly M ESA Miniature Electrostatic Accelerometer M ITTSE Mobile lgor Tracking Telescope System M PTP Main Propulsion Test Program M PTS Multipurpose Tool Set M&C Monitor and Control Panel M&C Maintenance and Checkout M&F Materials and Facilities M&M Materials and Maintenance M&O Maintenance and Operations M&P Materials and Processes M&R Maintenance and Refurbishment M&R Maintenance and Repair M&RF Maintenance and Refurbishing Facility M+R Maintenance and Refurbishment M+R Time in Days before Move Operations M+R Maintenance and Repair M-M-L-S Model-Modes-Loads-Stresses M/F Maintenance Factor M/I Minimum Impulse M/L Maintenance Loop M/LR Maintenance Loop Recorder M/P Main Parachute M/R Mixture Ratio (Fuel to Oxidizer) M/S Measurement Stimuli M/SCI Mission/Safety Critical Item M/U Mockup M50 Mean of 1950 (Coordinate System) MA Master MA Master Alarm MA Multiple Access MA Mission Analysis MA Missed Approach MA Mike Amplifier MA Maintenance (STS) MA Maintenance Ability MA Middeck Act MA Metabolic Analyzer MA Material Authorization MA Multiple-access MA&P Maintenance Analysis and Planning MA&T Manufacturing Assembly and Test MAA Mathematical Association of America MAA Mechanical Arm Assembly MAA Maximum Authorized Altitude MAAB Materials Application Advisory Board MAAR Monthly Associate Administrator's Review MAB Materials Advisory Board MAB Master Acquisition Bus MAB Missile Assembly Building MAB Materials Applications Board MAB Mechanical Automation Breadboard MAC Multiaccess Computer MAC Military Airlift Command MAC Mean Aerodynamic Chord MAC Main Display Console MAC Maintenance Advisory Committee MAC Maximum Allowable Concentration MAC Maximum Concentration of Organics MAC Mean aerodynamic chord MACDS Monitor and Control Display System MACE Mechanical Antenna Control Electronics MACH Machine MACH Velocity Relative to the Speed of Sound MACI "Monitor, Access, and Control Interface" MACO Major Assembly Checkout MACRO Merge and Correlate Recorded Output (Program) MAD Maintenance Analysis Data MAD "Madrid, Spain (STDN)" MADC Multiplexer Analog to Digital Converter MADRE Manufacturing Data Retrieval System MADS Modular Auxiliary Data Systems MADS Modular auxiliary data system MAEP Minimum Autoland Entry Point MAF Mixed Amine Fuel MAF Michoud Assembly Facility MAF Manpower Authorization File MAG Magazine MAG Magnetic MAG Magnitude MAGSAT Magnetometer Satellite MAI Machine-Aided Indexing MAIDS System MAIDS Multipurpose Automatic Inspection and Diagnostic MAIDS Management Automated Information Display System MAIN Maintenance MAINT Maintenance MAIR Manufacturing and Inspection Record MAJ Major MAL Malfunction MAL Material Allowance List MAL Mobile Airlock MALL Malleable MAN Microwave Aerospace Navigation MAN Manual MANF Manifold MAOT Maximum Allowable Operating Time MAP Maintenance Analysis Program MAP Mission Application Program MAP Missed Approach Point MAP Message Acceptance Pulse MAPOLE Magnetic Dipole Spark Transmitter MAPS Measurement of Atmospheric Pollution from Satellites MAPS Measurement of Air Pollution from Satellites MAR Memory Address Register MAR Maintenance and Refurbishment MARS Modular Airborne Recorder System MARS Martin Automatic Reporting System MASDC Military Aircraft Storage and Disposition Center MAT Multiple Actuator Test MAT Meteorological Atmospheric Turbulence MAT Matrix MATCO "Materials Analysis, Tracking, and Control" MATL Material MAU Million Accounting Units MAUS Schewerelosigkeit MAUS Messenschafteliche Autonome Experiment Unter MAX Maximum MAXCO Maximum Dynamic Pressure MB Management Baseline MB Main Bus "MB, mbar" Millibar MBB Messerschmitt-Boklow-Blahn MBC Maximum Breathing Capacity MBCS Motion-Base Crew Station (SMS) MBFP Manufacturing Build and Flow Plan MBI Multibus Interface MBK Medications and Bandage Kit MBK Medications and bandage kit MBL Mobile Unit (TACAN Station) MBO Management by Objective MBPS Million Bits per Second MBPS Megabits per Second MBV Main Base Visit MC&C "Measurement, Command, and Control" MC&W Master Caution and Warning MCA Multichannel Analyzer MCA Motor Control Assembly MCA Monitoring and Control Assembly MCA Maximum Crossing Altitude MCA Master Control Assembly MCBF Mean Cycle between Failures MCC Main combustion chamber MCC-DOD Mission Control Center-DOD MCC-H Mission Control Center-Houston MCC-H Mission Control Center-Houston MCC-K Mission Control Center-Kennedy MCC-NASA Mission Control Center-NASA MCDS Multifunction CRT Display System MCDS Maintenance Control and Display System MCDS Multifunction CRT display system MCDU Multifunction CRT Display Unit MCF Maintenance and Checkout Facility MCF Mission Control Facility MCIU Manipulator controller interface unit MCL Master Configuration List MCL Mass Change Log MCLT Maximum Cruise Level Thrust MCM MADS control module MCN Master Change Notice MCOP Mission Control Operations Panel MCP Monitoring and Control Panel MCP Materials Control Plan MCP Master Computer Program MCP Mission Control Programmer MCP Measurements Control Procedure MCP Master Change Proposal MCP Monitoring and control panel MCPC Manipulator Controller Power Conditioner MCPS Major Cost Proposal System MCR Master Change Record MCT Mission Control Table MCT Maximum Climb Thrust MCVP Materials Control and Verification Program MCiU Manipulator Controller Interface Unit MCiU Mission Control and Interface Unit MCiU Master Control and Interface Unit MD Microdot MD Biomedical Office (KSC Directorate) MD Malfunction Detection MD Manual Direct MD Mission Director MD Manual Disconnect MD Master Dimension MDA Main Distribution Assembly MDA Maintainability Design Approach MDA Middeck Assembly (FDF) MDA Multiple Docking Adapter MDA Motor drive amplifier MDAC McDonnell Douglas Astronautics Company MDAR "Malfunction Detection, Analysis, and Recording" MDAS Meteorological Data Acquisition System MDAS Mission Data Acquisition System MDB Mission Data Book MDC Mission Director Center MDC Main Display Console MDC Mission Duty Cycle MDCA Main Distribution Control Assembly MDCS Material Data Collection System MDCS Master Digital Command System MDCS Malfunction Display and Control System MDCS Maintenance Data Collection System MDD Mate/Demate Device MDD Mate/demate device MDDS Material Directory Data Sheet MDE Modular Display Electronics MDE Mission Dependent Equipment MDE Mission Dependent Experiment MDF Manipulator Development Facility MDF Mating/Demating Facilities MDF Main Distribution Frame MDF Mild Detonating Fuse MDF Mild detonating fuse MDL Master Data Library MDM Multiplexer/Demultiplexer MDM Medical Monitor MDM Manipulator Deployment Mechanism MDM Multiplexer/demultiplexer MDR Mission Data Reduction MDR Missing Data Report MDR Minor Discrepancy Repair MDR Monthly Director's Review MDR Major Design Review MDR Maintenance Demand Rate MDRD Mission Data Requirements Document MDRS Mission Data Retrieval System MDRS Manufacturing Data Retrieval System MDS Mission Development Simulator MDS Malfunction Detection System MDS Minimum Discernible Signal MDS Master Development schedule MDS Minimum Discernible System MDS Management Data System MDT Mean Detonating Time MDT Mountain Daylight Time MDT Measurement Descriptor Table MDT Maintenance Demand Time MDT Mean Down Time MDTSCO McDonnell Douglas Technical Services Company ME Management Engineering ME Main Engine ME Miscellaneous Equipment MEA Main Electronics Assembly MEA Maintenance Engineering Analysis MEA Material Experiment Assembly MEAR Maintenance Engineering Analysis Request MEAS "Measuring, Measurement" MEB Main Electronics Box MEBO Main Engine Burnout MEC Mission Events Controller MEC Master Event Controller MEC Main Engine Controller MEC Master events controller MECA Main Engine Controller Assembly MECF Main Engine Computational Facilities MECH Mechanical MECO Main Engine Cutoff MECO Main engine cutoff MECR Maintenance Engineering Change Request MED Medical MED Medium MED Manual Entry Device MEDICS Medical Information Computer System MEE Mission Essential Equipment MEG Megohm MEI Master Inspection Item MEIG Main Engine Ignition MEIU Main Engine Interface Unit MEL Minimum Equipment List MEL Master Equipment List MELI Master Equipment List Index MELI Minimum Equipment List Index MEM Module Exchange Mechanism MEM Meteoroid Exposure Module MEOP Maximum Expected Operating Pressure MEP Mean Effective Pressure MEP Main Engine Propellant MEP Main Entry Point MEP Management Engineering Program MEP Minimum Entry Point MEP Minimum entry point MER Meridian MER Mission Evaluation Room MERL Materials Engineering Research Laboratory MERL Materials Equipment Requirement List MERSAT Meteorology and Earth Observation Satellite MERU Milliearth Rate Unit MES Main Engine Start MES Mated Events Simulator MES Mission Events Sequence MES Mated Elements Simulator MESC Master Events Sequencer Controller MET Master Events Timer MET Meteorological MET Mission Elapsed Time MET Mission Events Timer MET Mission elapsed time METRO Meteorology METVC Main Engine Thrust Vector MEWG Maintenance Engineering Working Group MF Midfuselage MF Mate and Ferry MF Major Function MF Master Frame MF Medium Frequency (300 to 3000 kHz) MF Middeck Forward MFA Manned Flight Awareness MFBP Manufacturing Flow and Building Plan MFC Multiple Flight Computer MFC Multiple Flight Controller MFD Main Feed MFD Malfunction Detection MFE Mid Frequency Executive MFF MDM Flight Forward MFG Major Functional Group MFG Manufacturing MFMR Multifrequency Microwave Radiometer MFO Major Function Overlay MFR Manipulator Foot Restraint MFR Multifunctional Review MFR Maximum Flight Rate MFR Multifunctional Receiver MFT Mean Flight Time MFTAD Master Flight Test Assignment Document (JSC) MFV Main Fuel Valve MFV Main fuel valve MG Middle Gimbal (YAW) MG Mobile Generator MGA Middle Gimbal Angle MGC Manual Gain Control MGE Maintenance Ground Equipment MGMT Management MGR Manager MGSE Mechanical Ground Support Equipment MGT Major Ground Test MGVT Mated Ground Vibration Test MHA Multiple headset adapter MHC Manipulator Hand Controller MHD Multihead Disc MHE Material Handling Equipment MHF Medium High Frequency MHSC Manipulator Handset Controller MHW Multihundred Watt MHz Megahertz (Megacycles per Second) MIA Multiflex Interface Adapter MIA Multiplexer interface Adapter MIA Multiplexer interface adapter MIB Master Interconnect Board MID Midbody MIL Military MIL GSFC Spaceflight Tracking and Data Network Station MILA Merritt Island Launch Area MILS Missile Impact Location System MILSTRIP Military Standard Requisition and Issue Procedure MIMOSA Mission Modes and Space Analysis MIN Minimum MINW Master Interface Network MIP Modification Instruction Package MIP Mandatory Inspection Point MIP Minimum Impulse Pulse MIP MMU Integration Plan MIPR Military Intergovernmental Purchase Request MIPS Merritt Island Press Site MIR Malfunction Investigation Report MIR Mirror MIT Master Instruction Tape MIT Massachusetts Institut@ of Technology (CSDL) MJCA Midbody Jettison Control Assembly MK Mark MKTI Mission Kit Technical Instruction ML Mobile Launcher ML Mold Line ML Middeck Left ML PED Mobile Launcher Pedestal MLB Multilayer Board MLC Mobile Launcher Computer MLF MDM Launch Forward MLG Main Landing Gear MLG Main landing gear MLI Multilayer Insulation MLL MDM Launch Left MLP Mobile Launch (Launcher) Platform MLP Mobile launcher platform MLR Monodisperse Latex Reactor MLR MDM Launch Right MLS Microwave Landing System MLS Microwave landing system MLW Maximum Landing Weight MM Major mode or mass memory MMACS Maintenance Management and Control System MMAS Material Management Accounting (Accountability) System MMC Mid motor controller MMCA Midbody Motor Control Assembly MMCA Mid motor controller assembly MMCL Master Measurement and Control List MMDB Master Measurement Data Base MMDB Mass Memory Data Base MMDF Mission Model Data File MMES MSFC Mated Element Systems MMH Maintenance Man-Hour MMH Monomethylhydrazine MMH Monomethyl hydrazine MML Master Measurement(s) List MMLS Model-Modes-Loads-Stresses MMPSE Multiuse Mission Payload Support Equipment MMS Multimission modular spacecraft MMSE Multiuse Mission Support Equipment MMSE Multiuse mission support equipment MMT Mass Memory Test MMU Mass memory unit MMU Manned maneuvering unit MN Main "MNA, B, C" "Main Bus A, B, or C" MNVR Maneuver MOA Memorandum of Agreement MOA Minute-of-Angle MOA Make on Arrival MOCF Mission Operations Computational Facilities MOCR Mission Operations Control Room MOD Mission Objectives Document MOD Mission Operations Director MOD Modification MOD Modify MOD "Modulation, Modulator" MOD "Module, Modular" MODARI- Methods of Defeating Advanced Radar Threats MODEM Modulator-Demodulator MODS Modifications MOF Manned Orbital Flight MOL Molecular MON Monitor MOP Mission Operations Plan MOPI Max Rate Output Initiator MOPR Mission Operations Planning Review MOPR Mission Operations Planning Room MOPS Military Operations Phone System MOPS Mission Operations Planning System MOR Manufacturing Operation Record MORD Mission Operations Requirements Document MORD Medical Operations Requirements Document MORT Management oversight and Risk Tree MOS Metal Oxide Semiconductor MOS Metal Oxide on a Substrate MOSPO Mobile Satellite Photometric Observatory MOT Motor MOV Main oxidizer valve MP Mod Package MP Mission Planner MP Melting Point MP Meteorology Panel MP Measuring Point MP Mass Properties MP Management Package MP Medium Pressure MP&C Maintenance Planning and Control MPAD Mission Planning and Analysis Division (JSC) MPB Maintenance Parts Breakdown MPC Midbody Pyro Controller MPC Meteorological Prediction Center MPC Memory Protection Check MPC Manual Pointing Controller MPC Mid power controller MPCA Mid power controller assembly MPD Maximum Permissible Dose MPD Main dc Power Distributor Assembly MPESS Mission Peculiar Experiment Support Structure MPG Multipoint Grounding MPG Multiple Point Ground MPGHM Mobile Payload Ground Handling Mechanism MPHE Material and Personnel Handling EqLjipment MPI Mission Payload Integration MPIIN Modification Procurement Instrument Identification MPIIN Number MPIO Mission Payload Integration Office MPL Mechanical Parts List MPL Manipulation Positioning Latches MPL Maintenance Parts List MPL Minimum Power Level (65%) MPL Minimum power level MPLN Maintenance Planning (Data Base) MPM Manipulator Positioning Mechanism MPM Manipulator positioning mechanism MPMP Mass Properties Management Plan MPMSE Multiuse Payload and Mission Support Equipment MPP Material Processing Procedure MPPSE Multipurpose Payload Support Equipment MPR Maintainability Problem Report MPR Management Program Review MPR Mockup Purchase Request MPS Material Processing System MPS "Master Program ,;chedule" MPS Main Propulsion System (Subsystem) MPS Material Processing Specification MPS Materials Processing in Space MPS Megabits per Second MPS Main propulsion system MPSR Mission Profile Storage and Retrieval MPSR Multipurpose Support Room MPSR Multipurpose Support Room MPST Multipurpose support team MPT Main Propulsion Test MPTA Main Propulsion Test Article MPTA Main propulsion test article MPTF Main Propulsion Test Facility MPVA Main Propellant Valve Actuator MR Mission Report MR Mixture Ratio MR Material Review MR Master Reset MRA Mechanical Readiness Assessment MRB Material Review Board MRC Measurement Requirements Committee MRCR Measurement Requirement Change Request MRD Mission Requirements Document MRD Material Review Disposition MRDR Material Review Disposition Record MRF Measurements/Stimuli Request Form MRF Maintenance Responsibility File MRF Maximum Retarding Force MRI measurement Requirements and Interface MRIR Medium Resolution Infrared Radiometer MRL Manipulator Retention Latches MRL Manipulator Retention Lock MRL Material Requirements List MRL Manipulator retention latch MRL Manipulator retention latch MRR Mission Reconfiguration Request MRS Management Review System MRTC Multiple Real-Time Commands MS/MS Material Science and Manufacturing in Space MSA Minimum Surface Area MSA Material Service Area MSA MSA-1 MSAD Materials Summary Acceptance Document MSB Most Significant Bit MSBLS Microw