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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.

Uplinks:

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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