2001-013A
Mars Surveyor 2001 Orbiter, bus identical to MCO. Launch Apr 7 2001. Mineralogical global mapping and characterization of orbital radiation environment, plus radio relay. JPL/JSC/Lockheed Martin Astronautics-Denver. The GRS will map the elemental surface composition.
Launch mass was 730 kg, with 347 kg prop and 383 kg dry.
79 kg fuel after MOI, so mass post MOI is 456 kg.
Size is 2.2m long 1.7m high 2.6m wide; 5.7m span Box+panel + boom, with 6-m GRS boom. Mass 376 kg dry, 725 kg full, 349 kg prop.
The orbiter enters a 25-hr capture orbit on 2001 Oct 20 with a 263 kg prop burn. Aerobraking for 76 days to final 400 km orbit.
| TMO | |||
| Date | Time | Event | Orbit |
|---|---|---|---|
| 2001 Apr 7 | 1502:21.860 | Launch by Delta 7925 | |
| T+1:06 SRB 1-6 sep | |||
| T+2:16 SRB 7-9 sep | |||
| T+4:23 MECO | -5000? x 190? x 37? | ||
| T+4:36 SES | |||
| T+4:42 Fairing sep | |||
| 1512 | T+10:03 SECO-1 195 km | 195 x 215 x 51.9 | |
| 1524:46 | T+22:24 SES-2 51s? | ||
| 1525:36 | T+23:15 SECO-2 | 182 x 1804 x 51.9 | |
| 1526:30 | T+24:08 St 2 sep | ||
| 1527:07 | T+24:45 TES 87s | ||
| 1528:35 | T+26:13 TECO C3=10.767 km2/s2 | 185 x -50218 x 51.9 (prelaunch) | |
| 1533:17 | T+30:55 Despin yo-yo | ||
| 1533:22 | T+31:00 St 3 sep | 185 x -87212 x 51.8 | |
| Bias offset to Mars: 450000 km intended; 74000 km actual | |||
| 1620? | St 2 depletion | 177 x 1805 x 40.0 | |
| 2001 Apr 8 | 0020 | Pass EL1:4 | |
| 2001 Apr 10 | 1900 | Passes 1 Mkm | |
| 2001 Apr 12 | 1224 | Depart Earth sphere, 1.5Mkm | |
| 2001 May 1 | 0.982 x 1.384 AU x 3.05 | ||
| 2001 May 23 | 1730 | TCM-1 3.6m/s 82s | |
| 2001 Jul 2 | 1630 | TCM-2 0.9m/s 23s | |
| 2001 Sep 17 | 0400 | TCM-3 12s, 0.5m/s | |
| 2001 Oct 12 | 0400 | TCM-4 3s 0.1m/s | |
| 2001 Oct 20 | 1318 | Enter Mars sphere | |
| 2001 Oct 24 | 0218 | MOI burn 1219s 1433 m/s 267 kg | |
| 0228:14 | LOS | ||
| 0231 | Periapsis 300 km | ||
| 0237 | MOI cutoff | 300 x 28000 18hr36min | |
| 0248 | End occultation | ||
| 0256ERT | End occultation at Earth | ||
2001 Oct 25 | 0628? | Stage 3 flyby Mars at 74000 km ? | |
| 2001 Oct 27 | Begin Walkin | 158 x 27000? x 93.5 | |
| 2001 Oct 30 | Aerobraking | 128 x 27000 x 93.5 | |
| 2001 Nov 6 | Main aerobrake phase 1 | ||
| 2001 Nov 13 | Aerobraking | 110 x (15hr) | |
| 2001 Nov 30 | 10hr, 103 x 15300 x 93.6 | ||
| 2001 Dec 18 | Main aerobrake phase 2 | ||
| 2001 Dec 20 | 0449 | Apoapsis A0134 | 261.24 96 x 6020 x 93 |
| 0909 | Apo A00135 | 258.72 96 x 5940 x 93 | |
| 2001 Dec 22 | 1000 | Apo A00147 | 230.34 97 x 4988 x 93 |
| 2001 Dec 26 | Endgame phase | ||
| 2001 Dec 28 | 0642 | Apo A00188 | 173.82 99 x 2951 x 93 |
| 0935 | Apo A00189 | 171.42 99 x 2869 x 93 | |
| 2001 Dec 30 | Apo A00206 | 105 x 2628 x 93 | |
| 2002 Jan 1 | Apo A00226 | 107 x 2042 x 93 | |
| 2002 Jan 3 | Walkout phase | ||
| 2002 Jan 11 | 116 x 500 x 93 | ||
| 2002 Jan 11 | 0818 | ABX-1 raise orbit 20m/s | 201 x 500 x 93 |
| 2002 Jan 12 | 197 x 502 x 93 | ||
| 2002 Jan 15 | 186 x 502 x 93 | ||
| ABX-2 Apo 393, 56m/s | 419 x 520 x 93.1 | ||
| 2002 Jan 17 | 2200 | ABX-3 27m/s rev 417 | 387 x 450 x 93 |
| 2002 Jan 28 | ABX-4 15s 1m/s | ||
| 2002 Jan 30 | 2014 | ABX-5 25s 2m/s | |
| 2002 Jan | Begin primary mission | 387 x 450 x 93 | |
| 2002 Feb 8 | HGA deploy | ||
| 2002 Feb 18 | Nadir point of orbit drift | ||
| 2002 Feb 19 | 0700? | Open GRS door | |
| 2002 Jun 4 | 1800? | Deploy GRS boom | |
| 2003 Oct 20 | Sun-synch burn 9.8m/s | ||
| 2003 Oct 30 | 'Halloween' solar flare | ||
| 2004 Aug 25 | end of primary mission | ||
| 2006 Mar 22 | 0730 | Safemode | |
| 2006 Mar 23 | Out of safemode | ||
| 2008 Sep 30 | Orbit adjust, 6 min burn | ||
| Leave 5pm SSO | |||
| 2009 Jun 9 | End drift, enter 3:45pm SSO | ||
| 2012 Mar | Orbit adjust to support MSL, drift to later LT | ||
| 2012 Jun 8 | Safemode | ||
| 2012 Jul 11 | Safemode | ||
| 2012 Jul 16 | Exit safemode | ||
| 2012 Jul 24 | OTM, 6s burn, support MSL | ||
| 2012 Nov | Switch to backup computer | ||
| 2014 Feb 11 | 2003 | 29s burn, orbit drift to AM daylight orbit | |
| 2014 Aug 5 | OTM for C/2013A1 flyby | ||
| 2015 Nov | Burn to lock SSO at 0645am | ||
Payload:
- THEMIS High res camera and thermal imaging spectrometer.
- GRS Mars Observer Gamma Ray Spectrometer
- MARIE Martian Radiation Environment Experiment
