Status Report

Mars Global Surveyor Update 10 Jan 2001

By SpaceRef Editor
January 10, 2001
Filed under ,

Wednesday, January 10, 2001 (DOY 003/19:00:00 to DOY 010/19:00:00 UTC)
Launch / Days since Launch = Nov. 7, 1996 / 1526 days
Start of Mapping / Days since Start of Mapping = April 1, 1999 / 650 days Total Mapping Orbits = 8,245
Total Orbits = 9,848
Recent Events:
Background Sequences — The spacecraft continues to operate nominally in performing the beta-supplement daily recording and transmission of science data. The mm102 sequence executed successfully from 01-004 (1/4/00) through 01-006 (1/6/01). The mm103 sequence has performed well since it started on 01-007 (1/7/01). It terminates on 01-010 (1/10/01). The mm104 sequence, successfully uplinked on 01-009 (1/9/01), begins executing on 01-011 (1/11/01).
Other — Two Delta Differential One-Way Range (DDOR) experiments were conducted on 01-009 (1/9/01). Data from these DDOR experiments are being analyzed and should assist the Mars Odyssey Program in calibrating the interplanetary navigation system.
Spacecraft Health:
All subsystems report nominal health.
Uplinks: There have been 16 uplinks to the spacecraft during the last two weeks, including new star catalogs and ephemeris files, instrument command loads, the background sequences cited above, and the mz068 and mz069 mini-sequences. There have been 5,065 command files radiated to the spacecraft since launch.
Upcoming Events:
The mm105 background sequence will be uplinked on 01-012 (1/12/01). Radio Science Occultation Egress Scans, scheduled for 01-010 (1/10/01) through 01-011 (01/11/01), will be commanded by the,mz068, & mz069 mini-sequences. Another DDOR experiment will be conducted on 01-013 (1/13/01). MOLA Polar Scans are scheduled for 01-018 (1/18/01) through 01-022 (1/22/01). On 01-025 (1/25/01), a Roll Only Targeted Observation (ROTO) demonstration will be conducted on the spacecraft. It will verify our readiness to conduct these observations during the extended mission. Two more DDOR experiments are scheduled for 01-024 (1/24/01) and 01-027 (1/27/01). 01-031 (1/31/01) will mark the end of the MGS primary mission and 01-032 (2/1/01) will mark our entry into the extended mission.

SpaceRef staff editor.