Mission 55
STS-55
1993-027A
Crew: 7 CDR - Steven R. Nagel
Plt - Terrence T. Henricks
MS 1 - Jerry L. Ross (PLC & EV 1)
MS 2 - Charles J. Precourt
MS 3 - Bernard A. Harris (EV 2)
PS 1 - Ulrich Walter
PS 2 - Hans Schlegel
Launch 26 April 1993 @ 1050:00 EDT
Orbital incl: 28.46
Max alt: 307.4 km.
Orbits: 160
Dur: 9:23:39:59
Landing: 6 May 1993 @ 0729:59 PDT
Launch Info: Orbiter - Columbia 102-14 Pad 39A KSC (MLP-3) - Delayed from
original launch date of 25 February due to SSME internal seal retainer clip inspection.
Also one day from 21 March due to Delta rocket launch 19 March (range scheduling).
First attempt on 22 March scrubbed in an RSLS abort at T-3 seconds due to LOX
preburner purge check valve malfunction at 7:50:57 am EST. Second attempt on 24 April
scrubbed due to faulty IMU-2 power supply. Landed on concrete runway 22 Edwards
AFB. Mission extended one day due to favourable consumables conditions. Landing
diverted from KSC due to low cloud ceiling and moisture in the air.

MISSION PARTICULARS
Launch Window: 2 hours, 30 minutes (10:50 am - 1:20 pm EDT)
TAL Sites: Banjul, Gambia (alternates: Ben Guerir, Morocco and Moron, Spain)
AOA site: Edwards, AFB (alternates: KSC and WS/NOR = Northrup Strip)
Primary landing site: KSC/SLF (Scheduled: 8:53 am EDT 5 May)
Landing Speed: 210 knots (242 mph)
Landing rollout: 10,095' from main gear touchdown
Vehicle weight @ liftoff: 4,518,784 lbs
Orbiter weight @ liftoff: 255,252 lbs
Orbiter weight @ landing: 227,203 lbs
PAYLOADS
Cargo mass approx.: 26,864 lbs
Landing Weight: Same
Special mission kits: EMU's, SORG, teleprinter, TAGS, PSA, UMS, MAR, MADS & ACIP, Regen. CO2 removal system, Sleep Stations, 5 laptops, GAPC, Standard WCS (not EDO WCS), Spacelab Utility Kit, Cycle Ergometer and no RMS
PRIMARY PAYLOADS
Spacelab-D2 - Long Module, Unit 1. Mass - 25,025 lbs 92 Expirements. On a USS (Unique Support Structure) and the Reaction Kinetic in Glass Melts (RKGM) in a GAS canister
SECONDARY PAYLOADS
Mid-deck SAREX-II modified configuration 'C' in crew module (see STS--37). Call signs: Nagel - N5RAW, Ross - N5SCW, Schlegel - DG1KIH & Walter - DG1KIM. A SAREX antenna test and SAFEX (Shuttle Amateur Funk Experiment) in SL module
SHUTTLE STACK COMPONENTS
SSME's: 2031 (1) - 8th use, 2109 (2) - 10th use, 2029 (3) - 7th use. At Tower Clear 104%
OMS Pods/Engines: LP-05/115 & RP-05/116 - All 3rd use
ET: ET-56 (LWT-49) & AADS
SRB's: BI-057 (RSRM-30) - Set successfully recovered
SHUTTLE STACK COMPONENTS
Left - 360 LO 30A Right - 360 LO 30B
41 ? Fwd ? TEM8
40 ? Cyl ? 41
41 ? Cyl ? 41
40 ? Cyl ? 40
New ? Cyl ? 40
40 ? Cyl ? 40
40 ? Cyl ? New
40 ? Att ? 41
New ? Stf ? New
40 ? Stf ? 41
40 ? Aft ? 41
2nd German Spacelab Mission
MISSION MILESTONES:
29 September 1992 ET-56 arrives on dock KSC
1 November 1992 OV-102 returns to OPF-2 following Mission-51/STS-52
11 January 1993 Spacelab-D2 inserted into cargo bay while in the OPF
3 February 1993 OV-102 rollover from OPF-2 to VAB High Bay for stacking the same day
7 February 1993 Stack rollout to Pad 39A
12 February 1993 TCDT countdown dress rehearsal conducted with crew aboard
22 March 1993 First launch attempt results in an abort (SSMEs 2030, 2034, & 2011 are replaced by 2031, 2109, & 2029)
21 April 1993 "Call to stations" 43 hr countdown started at 4 pm EDT & astronaut arrival KSC
26 April 1993 Launch
6 May 1993 Landing at Edwards AFB
11 May 1993 First leg of ferry flight from EAFB to Biggs AAF for overnight stay utilizing SCA-905
12 May 1993 Second leg of ferry flight from Biggs AAF to Kelly AFB, San Antonio, TX
14 May 1993 Final leg of ferry flight from Kelly AFB to Columbus AFB, Columbus, MS to KSC and OPF-2
pre-shuttle missions. shuttle era missions.
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