51-J (21)

Atlantis (1)
Pad 39-A (33)
21st Shuttle mission
1st Flight OV-104

Crew:

Karol J. Bobko (3), Commander
Ronald J. Grabe (1), Pilot
David C. Hilmers (1), Mission Specialist 1
Robert L. Stewart (2), Mission Specialist 2
William A. Pailes (1), Payload Specialist 1

Milestones:

OPF - April 14, 1985
VAB - May 10, 1985
(storage)
OPF - May 28, 1985
VAB - July 18, 1985
(storage)
OPF - July 30, 1985
VAB - Aug. 12, 1985
PAD - Aug. 30, 1985

Payload:

DoD(2)

Mission Objectives:

Launch:

October 3, 1985, 11:15:30 am EDT. Launch delayed 22 minutes, 30 seconds due to main engine liquid hydrogen prevalve close remote power controller showing faulty 'on' indication. Launch Weight: Classified.

Orbit:

Altitude: 319nm
Inclination: 28.5 degrees
Orbits: 64
Duration: 4 days, 1 hour, 44 minutes, 38 seconds.
Distance: 1,725,000 miles

Hardware:

SRB: BI-021
SRM: L021(HPM)
ET : 25/LWT-18
MLP : 2
SSME-1: SN-2011
SSME-2: SN-2019
SSME-3: SN-2017

Landing:

October 7,1985,10:00:08 a.m. PDT, Runway 23, Edwards Air Force Base, Calif. Rollout distance: 8,056 feet. Rollout time: 65 seconds. Orbiter returned to KSC Oct. 11,1985. Landing Weight: 190,400 lbs.

Mission Highlights:

Second mission dedicated to Department of Defense.

Mission Index Last Mission 51-I Next Mission 61-A


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