Mission 21
STS-28/51-J
1985-092A
Crew: 5 CDR - Karol J. Bobko
Plt - Ronald J. Grabe
MS 1 - David C. Hilmers (EV 1)
MS 2 - Robert L. Stewart (EV 2)
PS 1 - William A. Pailes
Launch 3 October 1985 @ 1115:30 EDT
Orbital incl: 28.52
Max alt: 513.4 km.
Orbits: 63
Dur: 4:01:44:38
Landing: 7 October 1985 @ 1000:08 PDT
Launch Info: Orbiter - Atlantis 104-1 Pad 39A KSC (MLP-2) - Hold time of 22 min-
utes, 30 seconds due to faulty remote LH2 power controller, orginal liftoff time was
10:53 am

MISSION PARTICULARS
Launch Window: DOD announced launch period" 10:20 am to 1:20 pm EDT
TAL Sites: Dakar
AOA site: Edwards AFB
Primary landing site: Edwards AFB
Landing Speed: 187 knots (215 mph)
Landing rollout: 8,056' from main gear touchdown
Vehicle weight @ liftoff: N/A
Orbiter weight @ liftoff: N/A
Orbiter weight @ landing: N/A
PAYLOADS
Cargo mass approx.: N/A
Landing Weight: N/A
Special mission kits: EMU's 1071 & 1072, Galley, teleprinter, HUD, no RMS
PRIMARY PAYLOADS
DOD 85-2 DSCS III-2(B-4) & 3(B-5)/IUS - 1985-092B Deployable mass - 1,969 lbs ea., USA-11 & 12, on an IUS cradle
SECONDARY PAYLOADS
Mid-deck: One unclassified exp.: BIOS (Biostack Mid-deck Experiment, solid state radiation dosimeter radiation survey), 2 USAF exp. - 1) CLOUDS II (see Mission-12/41-D), QRSP Q008). 2) MARC-DN (Measurement of Atmospheric Radiance Camera-Day/Night, modified Cargo Bay TV Camera to record images o fcelestial, earth limb and ground targets under varying angles of illumination, QRSP Q005)
New via FOIA AMOS, CST (Contrast Sensitivity Test), OCEANS, RME, VFT-1, OASIS, RTPA (Reaction Time-Preception Analyzer) & WINCON (WINdow CONtamination)
SHUTTLE STACK COMPONENTS
SSME's: 2011 (1) - 2nd use, 2019 (2) - 2nd use, 2017 (3) - 4th use. At liftoff 104% same after throttle-up
OMS Pods/Engines: LP-03/107 - 6th use & RP-99/111 - 7th Pod use/2nd motor use
ET: ET-25 (LWT-18)
SRB's: LO-21/BI-021 - Lightweight set successfully recovered
SHUTTLE STACK COMPONENTS
Left - 21A Right - 21B
11-A 002 Fwd 028 New
11-A 043 Cyl 080 9-B
5-A 017 Cyl 081 9-B
8-B L36 Cyl L46 11-B
8-A L30 Cyl L47 11-B
New L99 Cyl L48 11-B
11-A L45 Cyl L48 11-B
New L18 Att L19 New
New L31 Stf L33 New
New L32 Stf L34 New
11-A 004 Aft 031 New
Maiden Flight of Atlantis.
MISSION MILESTONES:
6 April 1985 Rollout ceremony of Atlantis at Rockwell Plant, Palmdale, CA
9 April 1985 Overland transport of OV=104 form Rockwell Plant to Edwards AFB
12 April 1985 Ferry flight of OV-104/SCA from Edwards AFB to KSC, arriving at OPF-1 the next day
13 April 1985 Final hop of ferry flight from Ellington AFB to KSC, arriving at OPF-1 the next day
10 May 1985 OV-104 moved from OPF-1 to VAB High Bay 2 for temporty storage
28 May 1985 OV-104 moved from VAB High Bay 2 to OPF-2
10 June 1985 ET-25 arrives on dock KSC
18 July 1985 OV-104 transferred back to VAB High Bay 2 for further temporary storage
30 July 1985 OV-104 returned to OPF-1 to begin processing for Mission 51-J
9 August 1985 ET/SRB mate
11 August 1985 OV-104 rollover from OPF-1 to VAB High Bay 3 for stacking two days later
29 August 1985 Stack rollout from VAB to Pad 39A
12 September 1985 Flight Readiness Firing conducted at 104% for 20 secnds at 11 am EDT
16 September 1985 TCDT dress rehearsal conducted with crew aboard orbiter
30 September 1985 Astronaut arrival KSC
1 October 1985 "Call to stations" 43 hr countdown started at a still classified time
3 October 1985 Launch
7 October 1985 Landing at Edwards AFB
11 October 1985 Ferry flight from Edwards AFB to Kelly AFB for refuelling stop to KSC (one day hop)
12 October 1985 OV-104 returned to the OPF
pre-shuttle missions. shuttle era missions.
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