Mars Global Surveyor Status Report 26 July 2000

(DOY 201/19:00:00 to DOY 208/19:00:00 UTC)
 
Launch / Days since Launch = Nov. 7, 1996 / 1358 days
Start of Mapping / Days since Start of Mapping = April 1, 1999 / 482 days Total Mapping Orbits = 6189
Total Orbits = 7792
 
Recent Events:
 
Background Sequences — The spacecraft continues to operate nominally in performing the beta-supplement daily recording and transmission of science data. The mm054 sequence executed successfully from 00-202 (7/20/00) through 00-204 (7/22/00). The mm055 sequence has performed well since it started on 00-205 (7/23/00). It terminates on 00-208 (7/26/00). The mm056 sequence, successfully uplinked on 00-207 (7/25/00), begins executing on 00-209 (7/27/00).
 
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. On 00-203 (7/21/00) we successfully demonstrated the capability to perform uplinks using the new DSS-14 X-band transmitter. There have been 4752 command files radiated to the spacecraft since launch.
 
Upcoming Events:
 
The mm057 background sequence will be uplinked 00-210 (7/28/00). The MOLA will be turned-on on 00-214 (8/1/00). Radio Science Occultation Egress Scans will take place 00-221 (8/8/00) and 00-222 (8/9/00).