1991-031A
SPAS-2 was deployed at 0817 on May 1. At 2130 the dance began with two out of plane OMS burns, followed at 2157 with an RCS burn to return to the original position. The cycle was repeated several times. The CIRRIS made IR observations of the aurora, earth limb and celestial sources as well as the CRO chemical releases. The URA experiment failed shortly into operation, but did provide proof of concept.
| STS-39 | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1991 Feb 9 | Tow to VAB | ||
| 1991 Feb 11 | ET mate | ||
| 1991 Feb 15 | Rollout | LC39A | |
| 1991 Mar 7 | Rollback | VAB | |
| 1991 Mar 13 | Demate | VAB | |
| 1991 Mar 14 | Tow to OPF | OPF | |
| 1991 Mar 25 | Tow to VAB | VAB | |
| 1991 Mar 26 | ET mate | ||
| 1991 Apr 1 | Rollout | LC39A | |
| 1991 Apr 28 | 1133:14 | Launch from LC39A | |
| 1135:17 | SRB sep | ||
| 1141:48 | MECO | ||
| 1142:06 | ET sep | 87.44 43 x 252 x 57.0 | |
| 1209:21 | OMS-2 (2:10) 64m/s | 89.64 248 x 263 x 57.0 | |
| 1211:30 | OMS-2 CO | ||
| 1300 | PLBD open | 89.65 251 x 263 x 57.0 | |
| 1430 | STP-1 checkout | ||
| 1530 | RMS checkout | ||
| 1730 | QINMS cover open | ||
| 1991 Apr 29 | 1245 | RMS inspection of IBSS/AIS | |
| 1340 | RMS work complete | ||
| 1991 Apr 29 | 1200 | 89.63 249 x 262 x 57.0 | |
| 1991 Apr 30 | 0900 | 89.58 247 x 260 x 57.0 | |
| 1991 Apr 30 | 2030 | RMS inspection of IBSS/AIS | |
| 2045? | RMS restow | ||
| 1991 May 1 | 0219 | RMS moving | |
| 0226? | RMS latched | ||
| 0615 | RMS raised - SPAS unberthed | ||
| 1991 May 1 | 0817:45 | SPAS-2 deployed | |
| 0824 | RCS-1 sep | ||
| 0854 | RCS-2 MC1 FF brake at 10km | ||
| 0934 | RCS-3 MC2 FF | ||
| 0954 | RCS-4 NFF | ||
| 1100 | 89.55 245 x 259 x 57.0 | ||
| 1119 | RCS-5 TFF-1 | ||
| 1219 | RCS-6 | ||
| 1634 | RCS-7 NC1 | ||
| 1853 | RCS-8 NC2 | ||
| 2023 | RCS-9 TFF1 | ||
| 2105 | RCS-10 MCFF1 | ||
| 2129:59 | OMS-3 R (20s) | ||
| 2134:59 | OMS-4 L (19s) | ||
| 2147 | RCS-11 MCP1 | ||
| 2157 | RCS-12 VNP1 | ||
| 2221 | RCS-13 MCP | ||
| 2231 | RCS-14 VNP | ||
| 2238:00 | OMS-5 R oop/1 20s | ||
| 2238 | RCS-15 RCSP | ||
| 2239 | RCS-16 NRCS | ||
| 2242:59 | OMS-6 L brake 20s | ||
| 2304:00 | OMS-7 R oop/1 20s | ||
| 2309:00 | OMS-8 L brake 19s | ||
| 1991 May 2 | 0128 | CRO C deploy | |
| 0202 | RCS-17 NCSK3 return | ||
| 0532 | RCS-18 NCCNF | ||
| 0628 | RCS-19 TNF | ||
| 0653 | RCS-20 MC1 NF | ||
| 0704 | RCS-21 PN1 | ||
| 0718 | RCS-22 MC2 NF | ||
| 0733 | RCS-23 MC3 NF | ||
| 0748 | RCS-24 NFF | ||
| 0755:00 | OMS-9 R 6A oop/1 20s | ||
| 0800:00 | OMS-10 L 6B brake 20s | ||
| 0812 | RCS-25 MCP4 | ||
| 0822 | RCS-26 VNP4 return | ||
| 0829:00 | OMS-11 R 7A oop/1 20s | ||
| 0834:00 | OMS-12 L 7B brake 19s | ||
| 0846 | RCS-27 MCP5 | ||
| 0856 | RCS-28 NSR5 return | ||
| 0930 | Begin CIV timebase? | ||
| 1000? | 89.51 242 x 257 x 57.0 | ||
| 1056 | CIV release No. 1, Xe | ||
| 1130? | CIV release 2, CO2 | ||
| 1200? | CIV release 3, NO | ||
| 1230? | CIV release 4, Ne | ||
| 1343 | RCS-29 | ||
| 1412 | CRO-C release | ||
| 1520 | RCS-30 NOPC | ||
| 1803 | CRO-B deployed | ||
| 1937 | RCS-31 NCC | ||
| 2033 | RCS-32 TI | ||
| 2106 | RCS-33 PN2 | ||
| 2120? | RCS-34 MC2 | ||
| 2130 | RCS-35 MC3 | ||
| 2140 | RCS-36 MC4 | ||
| 2144 | RCS-37 manual | ||
| 2155 | 240m | ||
| 2203 | CRO-B release UDMH | ||
| 2209 | 75m | ||
| 2218 | Rendezvous with SPAS-2 | ||
| 2225:27 | RMS retrieve SPAS-2 | ||
| 2233 | Begin berthing | ||
| 2251 | SPAS-2 reberthed | ||
| 2253 | RMS ungrapple | ||
| 2317 | RMS powered down | ||
| 1991 May 3 | 1038:49 | OMS-13 R 10s height adjust | 89.47 241 x 255 x 57.0 |
| 1127:34 | OMS-14 L 10s | 89.48 241 x 256 x 57.0 | |
| 1153 | RMS unstow, ready to grapple | ||
| 1200 | 89.66 249 x 266 x 57.0 | ||
| 1210 | CRO-A deploy | ||
| 1305 | Grapple SPAS with RMS | ||
| 1405:29 | SPAS-2 unberth on RMS | ||
| 1423 | SPAS-2/RMS in position for observations | ||
| 2156 | CRO-A release | ||
| 2217 | Reberthing SPAS | ||
| 2235 | SPAS-2 reberthed | ||
| 2236 | RMS ungrapple SPAS | ||
| 2248 | RMS cradled | ||
| 2313:14 | OMS-15 R 6s | ||
| 2358:06 | OMS-16 L 6s | ||
| 1991 May 4 | 0000 | 89.76 254 x 271 x 57.0 | |
| 0015 | Arm raised for SPAS-2 grapple | ||
| 0026 | SPAS-2 on RMS | ||
| 0048 | Unberth SPAS-2 | ||
| 0112 | SPAS-2 being raised | ||
| 1210 | Lower RMS to low hover | ||
| 1236 | Go for berthing | ||
| 1241 | SPAS-2 reberthed | ||
| 1300? | Ungrapple SPAS-2 | ||
| 1307 | Start RMS direct drive test | ||
| 1400 | CIV releases | ||
| 1430 | RMS cradled | ||
| 1830 | URA observing | ||
| 1991 May 5 | 1553 | RCS-38 8s raise for MPEC and LACE | |
| 1600 | 89.70 252 x 267 x 57.0 | ||
| 1715 | RCS-39 hot fire | ||
| 2226 | RCS-40 5s raise | ||
| 1991 May 6 | 0810? | MPEC deploy | 89.70 253 x 265 x 57.0 |
| 0855 | RCS-41 sep | 89.64 248 x 264 x 57.0 | |
| 1608 | PLBD closed | 89.66 250 x 264 x 57.0 | |
| 1753:34 | OMS DO (2:23) 78m/s | ||
| 1755:57 | OMS DO CO | ||
| 1823:27 | Entry | ||
| 1855:35 | Landed RW15 KSC | ||
| 1855:49 | NGTD | ||
| 1856:31 | Wheels stop | ||
| 2230 | Tow to OPF/1 | ||
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