Mars Global Surveyor Status Report 25 Sep 2002

Status Report From: Jet Propulsion Laboratory
Posted: Wednesday, September 25, 2002

  • Launch / Days since Launch = Nov. 7, 1996 / 2149 days
  • Start of Mapping / Days since Start of Mapping = April 1, 1999 / 1274 days
  • Total Mapping Orbits = 15,864
  • Total Orbits = 17,547

Recent Events:

Background Sequences - The spacecraft is operating nominally in performing the beta-supplement daily recording and transmission of science data. The mm211 sequence executed successfully from 02-262 (9/19/02) through 02-264 (9/21/02). The mm212 sequence has performed well since it started on 02-265 (9/22/02). It terminates on 02-268 (9/25/02). The mm213 sequence, successfully uplinked on 02-267 (9/24/02), begins executing near the end of day on 02-268 (9/25/02).

Other - Seven Roll Only Targeted Observations (ROTOs) were performed successfully by the mz201, mz202, & mz203 minisequences. MGS has completed 213 ROTOs to date.

Spacecraft Health:

Spacecraft subsystems report good health and status.


There have been 16 uplinks to the spacecraft during the past week, including new star catalog and ephemeris files, instrument command loads, the mz203 & mz204 ROTO mini-sequences, and the mm212 & mm213 background sequences. 7,056 command files have been radiated to the spacecraft since launch.

Upcoming Events:

ROTOs are planned for next week in the mz204 & mz205 mini-sequences. Radio Science Occultation Egress Scans, also contained in mz205, will be performed on 02-273 (9/30/02) and 02-274 (10/01/02). The DDOR experiment scheduled for 02-276 (10/03/03) has been cancelled due to scheduling constraints.

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