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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.

Uplinks:

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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