STS-37 (39)

Atlantis (8)
Pad 39-B (17)
39th Shuttle mission
8th Flight OV-104
Extended mission


Steven R. Nagel (3), Commander
Kenneth D. Cameron (1), Pilot
Jerry L. Ross (3), Mission Specialist 1
Jay Apt (1), Mission Specialist 2
Linda M. Godwin (1), Mission Specialist 3


OPF - Nov. 20, 1990
VAB - March 8,1991
PAD - March 15,1991



Mission Objectives:

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April 5, 1991, 9:22:44 a.m. EST. Launch set for 9:18 a.m., April 5th. Was briefly delayed due to low-level clouds in area. Launch Weight: 255,824 lbs.


Altitude: 248nm
Inclination: 28.45 degrees
Orbits: 93
Duration: 5 days, 23 hours, 32 minutes, 44 seconds.
Distance: 2,456,263 miles


SRB: BI-042
SRM: 360L014
ET : 37/LWT-30
MLP : 1
SSME-1: SN-2019
SSME-2: SN-2031
SSME-3: SN-2107


April 11, 1991, 6:55:29 a.m. PDT, Runway 22, Edwards AFB, Calif. Rollout distance: 6,364 feet. Rollout time: 56 seconds. Landing originally scheduled for April 10, but delayed one day due to weather conditions at Edwards and KSC. Orbiter returned to KSC April 18,1991. Landing Weight: 190,098 lbs.

Mission Highlights:

Primary payload, Gamma Ray Observatory (GRO), deployed on flight day three. GRO high-gain antenna failed to deploy on command; finally freed and manually deployed by Ross and Apt during unscheduled contingency space walk, first since April 1985. Following day, two astronauts performed first scheduled space walk since November 1985 to test means for astronauts to move themselves and equipment about while maintaining planned Space Station Freedom. GRO science instruments were Burst and Transient Source Experiment (BATSE), Imaging Compton Telescope (COMPTEL), Energetic Gamma Ray Experiment Telescope (EGRET) and Oriented Scintillation Spectrometer Experiment (OSSEE). Secondary payloads included Crew and Equipment Translation Aids (CETA), which involved scheduled six-hour space walk by astronauts Ross and Apt (see above); Ascent Particle Monitor (APM); Shuttle Amateur Radio Experiment II (SAREX II); Protein Crystal Growth (PCG); Bioserve/instrumentation Technology Associates Materials Dispersion Apparatus (BIMDA); Radiation Monitoring Equipment III (RME Ill); and Air Force Maui Optical Site (AMOS) experiment.

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Last Updated Friday June 29 11:21:02 EDT 2001
Jim Dumoulin (