NASA Photo ID: S93-31603           File Name: 10072666.jpg
  Film Type: 4x5                     Date Taken: 04/05/93
  Title: STS-56 ATLAS-2 pallet is lowered into OV-103's payload bay at KSC's OPF HB-3
  Description:
  STS-56 Atmospheric Laboratory for Applications and Science 2 (ATLAS-2) 
  unpressurized spacelab pallet and the mission peculiar support structure 
  (MPESS)-mounted Shuttle Pointed Autonomous Research Tool for Astronomy 201 
  (SPARTAN-201) are lowered into the payload bay (PLB) of Discovery, Orbiter 
  Vehicle (OV) 103, at the Kennedy Space Center's (KSC's) Orbiter Processing 
  Facility (OPF) High Bay 3 (HB-3) during preflight integration. 
  Clean-suited  technicians monitor the progress and operation of the
  overhead crane from  which the ATLAS-2 pallet/SPARTAN MPESS are suspended. 
  ATLAS-2 equipment and  instruments include: the igloo (cylindrical tank -
  front and center); the  inverters and pump package (far right); port
  conical scan sensor (next to  pump package at far right); the
  millimeter-wave atmospheric sounder (MAS)  antenna (pallet center, just
  above igloo); the starboard conical scan sensor  (small cylinder at far
  left); and the atmospheric trace module spectroscopy  (ATMOS) (box behind
  conical sensor at far left).  Smaller ATLAS-2 instruments  partially
  blocked by the igloo and located in the center of the pallet  include (left
  to right): Active Cavity Radiometer Irradiance Monitor (ACRIM  or ACR);
  Solar Constant Instrument (SOLCON); Solar Spectrum Instrument  (SOLSPEC);
  and MAS (large box just below antenna).  The SPARTAN-201 is  visible behind
  and above the ATLAS-2 pallet.  Mounted on the PLB starboard  longeron are
  the Shuttle Solar Backscatter Ultraviolet A (SSUV/A) get-away  special
  (GAS) canisters (canister in foreground is equipped with motorized  door
  assembly (MDA)). Alternate KSC number is KSC-93PC-299.
  
  Subject terms:
  ATMOSPHERIC PHYSICS                     
  CRANES                                  
  DISCOVERY (ORBITER)                     
  EARTH ATMOSPHERE                        
  FLORIDA                                 
  GET AWAY SPECIALS (STS)                 
  KENNEDY SPACE CENTER                    
  PALLETS                                 
  PAYLOAD BAY                             
  PERSONNEL                               
  PREFLIGHT OPERATIONS                    
  SOLAR PHYSICS                           
  SPACE SHUTTLE PAYLOADS                  
  SPACEBORNE ASTRONOMY                    
  SPACEBORNE EXPERIMENTS                  
  SPARTAN SATELLITES                      
  STS-56                                  
  

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