Mission 57
STS-51
1993-058A
Crew: 5 CDR - Frank L. Culbertson
Plt - William F. Readdy (IV 1)
MS 1 - James H. Newman (EV 2)
MS 2 - Daniel W. Bursch
MS 3 - Carl E. Walz (EV 1)
Launch 12 September 1993 @ 0745:00.062 EDT
Orbital incl: 28.46
Max alt: 326.7 km.
Orbits: 158
Dur: 9:20:11:07
Landing: 22 September 1993 @ 0356:07 EDT
Launch Info: Orbiter - Discovery 103-17 Pad 39B KSC (MLP-3) - First attempt on
17 July was scrubbed at T-20 minutes due to faulty SRB hold-down bolt safe and arm
system. Second attempt on 24 July was scrubbed at T-19 seconds due to SRB HPU
turbine underspeed condition. A launch date of 4 August was delayed due to Perseids,
and on 10 August it was delayed two days to verify ACTS electronics. Third attempt on
12 August was scrubbed at T-3 seconds in an RSLS abort at 9:12 am due to indication
of fuel flow problem in ME-2. Original 10 day flight curtailed to nine days due to the
desire not to have two landing opportunities at night. Landed on runway 15, KSC/SLF.
17th KSC landing & 1st KSC night landing. The two landing opportunities that were
available on 21 September were waved off due to isolated rain showers in central Florida.

MISSION PARTICULARS
Launch Window: 1 hour, 55 minutes (7:45 - 9:40 am EDT, with a cutout from 8:16 - 8:21 am)
TAL Sites: Ben Guerir, Morocco
AOA site: Edwards AFB (Alternates: KSC and WS)
Primary landing site: KSC/SLF (Scheduled: 3:56 am EDT 22 September, curtailed to 21 September)
Landing Speed: 198 knots (228 mph)
Landing rollout: 8,271' from main gear touchdown
Vehicle weight @ liftoff: 4,525,869 lbs
Orbiter weight @ liftoff: 261,597 lbs
Orbiter weight @ landing: 206,438 lbs
PAYLOADS
Cargo mass approx.: 42,682 lbs
Landing Weight: 15,931 lbs
Special mission kits: 3 EMU's, EMU TV-receiver (for SPAS), Teleprinter, SORG Galley, Generic PSA, External GPS receiver (DTO 700-6), new Extended Range Payload Comm. Link (ERPCL), new Trajectory Control Sensor RV rangefinder (TCS), EVA Tools, Thermal Impulse Printer, MAR, laptops, exercycle (ergometer) and RMS-201
PRIMARY PAYLOADS
Advanced Communications Satellite (ACTS)/Transfer Orbit Stage (TOS ORBUS 21) - 1993-058B & TOS - 1993-058C Deployed mass - 26,756 lbs. ACTS mass - 6,108 lbs. Mounted on Airborne Support Equipment (ASE), mass - 6,394 lbs
Orbiteing Retrievable Far and Extreme Ultraviolet Spectrometer-Shuttle Pallet Satellie (ORFEUS-SPAS) - 1993-058D A 1-meter telescope with 2 focal plane instr., the Far Ultraviolet and Extreme UltraViolet spectrometers. Also carrying IMAPS (Interstellar Medium Absorption Profile Spectrograph UV instr.), RICS (Remote IMAX Camera with EMU TV) and SESAM (Surface Effects Sample Monitor). Mass - 7,070 lbs
EVA ACTIVITY
Testing of HST repair tools
EVA-1 - 16 September (Newman & Walz) Duration - 7 hours, 5 minutes NOTE: On 16 September, the Mir also conducted an EVA - First time this has happened
SECONDARY PAYLOADS
Mid-deck LDCE Configuration C (see STS-46), IMAX in-cabin camera (see STS-41C), CPCG-II (see STS-49), CHROMEX-04 (see STS-29R), APE-B (see STS-9 & STS-43), and HRSGS-A (High Resolution Shuttle Glow Spectroscopy)
SHUTTLE STACK COMPONENTS
SSME's: 2031 (1) - 9th use, 2034 (2) - 3rd use, 2029 (3) - 8th use. At Tower Clear 104%
OMS Pods/Engines: LP-01/106 - Pod & Motor 10th use both, & RP-03/114 - Pod 11th use, Motor 18th use
ET: ET-59 (LWT-52)
SRB's: BI-060 (RSRM-33) - Set successfully recovered
SHUTTLE STACK COMPONENTS
For a complete listing, see the Shuttle Rocket Booster page

ACTS Deploy & ORFEUS-SPAS
MISSION MILESTONES:
3 February 1993 ET-59 arrives on dock KSC
17 April 1993 OV-103 returns to OPF-3 following Mission-54/STS-56
2 June 1993 ET-59/SRB mate in VAB High Bay-1 for stacking the same day
26 June 1993 Stack rollout to Pad 39B
27 June 1993 ACTS/TOS & ORPHEUS-SPAS installed into the orbiter on the pad
1 July 1993 TCDT countdown dress rehearsal conducted with crew aboard
12 August 1993 An RSLS abort required an engine complement swap (2030, 2033, & 2032 for 2031, 2034, & 2029
9 September 1993 "Call to stations" 43 hr countdown started at 8 am EDT and astronaut arrival KSC
12 September 1993 Launch
22 September 1993 Landing at KSC/SLF. OV-103 returned to OPF-3 the same day
pre-shuttle missions. shuttle era missions.
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