1991-080A
Atlantis deployed the DSP satellite and carried out military experiments. The Terra Scout payload specialist used SPADVOS to study 27 ground targets and carried out the M88-1 experiments to study 16 other ground sites.
The payload bay contained a Protective Cover Removal System (PCRS) which seems to have been related to the DSP payload; presumably some sensor covers on DSP were designed to open before deployment, and perhaps a contingency spacewalk would have been made to remove the covers using tools stored in the PCRS - but this is just speculation.
The mission was cut by 3 days when an IMU malfunctioned on Nov 30 and a Minimum Duration Flight (MDF) was declared.
Atlantis rolled down the runway, with wheels stop at 2236:27 after a no-braking rollout test.
| STS-44 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1991 Oct 18 | Tow to VAB | ||
| 1991 Oct 24 | Rollout | LC39A | |
| 1991 Nov 24 | 2344:00 | Launch from LC39A | |
| 2346:07 | SRB sep | ||
| 2352:30 | MECO | 88.78 70 x 358 x 28.5 (OMS dV) | |
| 2352:48 | ET sep | ||
| 1991 Nov 25 | 0024:48 | OMS-2 (3:04) 87m/s | |
| 0027:52 | OMS-2 CO | ||
| 0118 | PLBD open | 91.81 358 x 367 x 28.5 | |
| 0602 | DSP/IUS deployed | ||
| 0617:46 | OMS-3 sep 16s 10m/s | 92.14 362 x 396 x 28.5 | |
| 1991 Nov 26 | 0600? | ARCS-1 orbit lower 75s | |
| 0653 | 91.84 361 x 367 x 28.5 | ||
| 1991 Nov 28 | 2210 | RCS 7s mv avoid r/b K851 | 91.83 360 x 367 x 28.5 |
| 1991 Nov 30 | 1514 | IMU-2 failed | |
| 1625 | MDF (Min Duration Flight) declared | ||
| 1991 Dec 1 | 1845 | PLBD closed | 91.84 361 x 368 x 28.5 |
| 2128:16 | OMS DO (3:03) 108m/s | ||
| 2131:19 | OMS DO CO | ||
| 2203:23 | Entry interface 128 km | ||
| 2234:42 | Landing RW05 EAFB | ||
| 2234:51 | NGTD | ||
| 2236:27 | Wheels stop | ||
| 1991 Dec 7 | 1430 | SCA takeoff | EAFB |
| 1815 | SCA landing | Sheppard AFB, Wichita Falls, TX | |
| 1991 Dec 8 | 1200 | SCA takeoff | |
| 1535 | SCA landing | KSC SLF | |
| 1900 | Tow to OPF | OPF/2 | |
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