Mars Global Surveyor Status Report 2 Oct 2002

Status Report From: Jet Propulsion Laboratory
Posted: Wednesday, October 2, 2002

  • Launch / Days since Launch = Nov. 7, 1996 / 2156 days
  • Start of Mapping / Days since Start of Mapping = April 1, 1999 / 1281 days
  • Total Mapping Orbits = 15,950
  • Total Orbits = 17,633

Recent Events:

Background Sequences - The spacecraft is operating nominally in performing the beta-supplement daily recording and transmission of science data. The mm213 sequence executed successfully from 02-269 (9/26/02) through 02-271 (9/28/02). The mm214 sequence has performed well since it started on 02-272 (9/29/02). It terminates on 02-275 (10/02/02). The mm215 sequence, successfully uplinked on 02-274 (10/01/02), begins executing near the end of day on 02-275 10/02/02).

Other - Nine Roll Only Targeted Observations (ROTOs) were performed successfully by the mz203, mz204, & mz205 minisequences. MGS has completed 322 ROTOs to date.

The Radio Science egress scans contained in the mz205 mini-sequence performed nominally. Radio Science Operations reported that the SNR at SPC-60 was lower than expected due to heavy rain, but all ten egress measurements were successfully acquired.

Spacecraft Health:

Spacecraft subsystems report good health and status.


There have been 21 uplinks to the spacecraft during the past week, including new star catalog and ephemeris files, instrument command loads, the mz205 ROTO & Radio Science Egress Scan mini-sequence, the mz206 ROTO mini-sequence, and the mm214 & mm215 background sequences. 7,077 command files have been radiated to the spacecraft since launch.

Upcoming Events:

ROTOs are planned for next week in the mz206 & mz207 mini-sequences.

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