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:

Click here for Additional Info on 51-J

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.

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