1991-063B
The Upper Atmosphere Research Satellite, built by General Electric, used the Fairchild MMS bus (like Landsat D). It had a total mass of 6526 kg at deployment per the SODB; 6540 kg per the press kit. The satellite was launched on STS-48. The RMS grappled the satellite at 2300 on Sep 14, and it was finally deployed at 0423:02 on Sep 15 into a 563 x 574 km x 57.0 deg orbit. Orbit raising burns were made at 1035 on Sep 17 and 1036 on Sep 18.
| UARS | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 1991 Sep 14 | 2300 | RMS grapple UARS | |
| 1991 Sep 15 | 0423:02 | RMS deploy UARS | |
| 1991 Sep 15 | 563 x 574 x 57.0 | ||
| 1991 Sep 17 | 563 x 574 x 57.0 | ||
| 1991 Sep 17 | 1035 | orbit raise | 555 x 587 x 57.0 |
| 1991 Sep 18 | 1036 | orbit raise | 574 x 575 x 57.0 |
| 1991 Sep 24 | 0230 | 574 x 581 x 57.0 | |
| 1991 Sep 30 | 1200 | 574 x 581 x 57.0 | |
| 1992 Jul | ISAMS failed | ||
| 1993 May | CLAES cryogen depleted | ||
| 1999? | End of orbit maintenance | ||
| 2005 Sep 17 | 550 x 560 x 57.0 | ||
| 2005 Sep 22? | Begin perigee lower | ||
| 2005 Oct 5 | Burn | 507 x 558 x 57.0 | |
| 2005 Oct 6 | Burn | 473 x 556 x 57.0 | |
| 2005 Oct 12 | Burn | 442 x 555 x 57.0 | |
| 2005 Oct 18 | Burn | 415 x 554 x 57.0 | |
| 2005 Dec 8 | Burn | ||
| 2005 Dec 14 | 1716 | decommissioned | |
| 2011 Sep 24 | 0400 | Entry over Pacific 14.1S 170.2W | |
Payload:
- MMS HPM MMS Hydrazine Propulsion Module, 4 x 5lb thrusters
- MMS MACS MMS Modular Attitude Control System. This unit originally flew on Solar Max, and was returned to Earth by Shuttle Mission 41-C in 1984 for refurbishment.
- SUSIM 2 Solar UV spectral irradiance monitor; 1000-4000A solar spectrum. 2 spectrometers in one instrument.
- CLAES Cryogenic Limb Array Etalon Spectrometer
- ISAMS Improved Stratospheric and mesospheric sounder
- MLS Microwave Limb Sounder, 1.6m reflector, 63, 183 and 205 GHz
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