1990-090A
STS-41 deployed the Ulysses probe. After a last-minute hold at T-31s launch took place at 1147 UTC on 1990 Oct 6. On Oct 7 the crew executed the OMS-4 burn to phase the orbit for improved landing conditions.
DTO 827, a test of the digital autopilot's ability to operate at high pitch rates, ran into cross-coupling problems and was terminated after 40s after using up 137 kg of RCS fuel.
| STS-41 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1990 Aug 27 | Tow to VAB | ||
| 1990 Aug 28 | ET mate | ||
| 1990 Sep 5 | Rollout | LC39B | |
| 1990 Oct 6 | 1147:15 | Launch from LC39B | |
| 1149:19 | SRB sep | ||
| 1155:46 | MECO | 65 x 291 x 28.5 (PK) | |
| 1156:03 | ET sep | 88.17 72 x 294 x 28.5 (OMS dV) | |
| 1227:08 | OMS-2 (2:25) 68.1m/s | ||
| 1229:32 | OMS-2 CO | ||
| 1300 | 90.51 295 x 302 x 28.5 | ||
| 1311 | PLBD open | ||
| 1707 | Tilt table deploy | ||
| 1748:15 | ULS/IUS/PAM-S deploy | ||
| 1749:13 | RCS sep 1 | ||
| 1803 | OMS-3 sep burn 23s | ||
| 2030 | 90.83 300 x 329 x 28.5 | ||
| 1990 Oct 7 | 1043:53 | OMS 4 phasing, 44s 12m/s | |
| 1100 | 90.39 285 x 301 x 28.5 | ||
| 1407 | RMS uncradle | ||
| 1522 | RMS parked for ISAC | ||
| 1990 Oct 9 | 0600 | 90.38 283 x 303 x 28.5 | |
| 1502 | RMS cradle | ||
| 1990 Oct 10 | 1020 | PLBD closed | |
| 1300:05 | OMS DO (2:38) 90.4m/s | 90.37 281 x 303 x 28.5 | |
| 1302:33 | OMS DO CO | -3? x 285 x 28.5 | |
| 1326 | Entry | ||
| 1357:18 | Landing RW22 EAFB | ||
| 1357:32 | NGTD | ||
| 1358:10 | Wheels stop | ||
| 1990 Oct 15 | 1230 | SCA takeoff | EAFB |
| 1715 | SCA landing | Sheppard AFB TX | |
| 1900 | SCA takeoff | ||
| 2140 | SCA landing | Eglin AFB FL | |
| 1990 Oct 16 | 1055 | SCA takeoff | |
| 1140 | SCA landing | KSC SLF | |
| 1500 | Tow to OPF/1 | ||
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