Mars Global Surveyor Status Report 2 August 2000
Mars Global Surveyor Status Report
Wednesday, August 2, 2000 (DOY 208/19:00:00 to DOY 215/19:00:00 UTC)
Launch / Days since Launch = Nov. 7, 1996 / 1365 days
Start of Mapping / Days since Start of Mapping = April 1, 1999 / 489 days Total Mapping Orbits = 6274
Total Orbits = 7877
Recent Events:
Background Sequences — The spacecraft continues to operate nominally in performing the beta-supplement daily recording and transmission of science data. The mm056 sequence executed successfully from 00-209 (7/27/00) through 00-211 (7/29/00). The mm057 sequence has performed well since it started on 00-212 (7/30/00). It terminates on 00-215 (8/02/00). The mm058 sequence, successfully uplinked on 00-214 (8/01/00), begins executing on 00-216 (8/03/00).
On 00-214 (8/01/00), the MOLA was turned on as part of the mm057 sequence. It had been off for a two-month period that included Solar Conjunction. MOLA laser transmitter life is directly related to its on-time. We plan to double its remaining useful life by operating the instrument every other month.
Spacecraft Health:
All subsystems report nominal health.
Uplinks:
There have been 13 uplinks to the spacecraft during the last week, including new star catalogs and ephemeris files, instrument command loads, and the background sequences cited above. There have been 4765 command files radiated to the spacecraft since launch.
Upcoming Events:
The mz053 mini-sequence will be uplinked 00-216 (8/03/00). It contains the Radio Science Occultation Egress Scans that will take place on 00-221 (8/8/00) and 00-222 (8/9/00). The mm059 background sequence will be uplinked 00-217 (8/04/00).