Mission Operations Days: 2002/110 to 2002/116
April 20, 2002 00:00:00 GMT to April 26, 2002 00:00:00 GMT
Terra Spacecraft and MODIS Instrument Status:
| AM-1 "Terra" is in Normal Mode PFM MODIS is in A-Side Science Mode |
||
|---|---|---|
| Component | State(s) | Comment |
| Blackbody | A On (290 K); B Off | Nominal |
| Calibration Electronics | A On; B Off | Nominal |
| Control Processor | A On; B Off | Nominal |
| Nadir Door | Unlatched, Open | Nominal |
| Space View Door | Unlatched, Open | Nominal |
| Solar Diffuser Door | Unlatched, Closed | Nominal |
| FDDI Formatter | A On; B Off | Nominal |
| FDDI Port | A On; B Off | Nominal |
| FIFO Memory | #1 & #2 On; #3 & #4 Off | Nominal |
| Format Processor | A On; B Off | Nominal |
| Power Supplies | #1 On, #2 Off | Nominal |
| PV VIS FPA | A On; B Off | Nominal |
| PV NIR FPA | A On; B Off | Nominal |
| PV SMIR FPA | A On; B Off | Nominal |
| PV LWIR FPA | A On; B Off | Nominal |
| PC LWIR FPA | A On; B Off | Nominal |
| RC Outgas Heaters | All Off (CS, IS, OS) | Nominal |
| RC LWIR FPA Heater | On (83 K) | Nominal |
| RC SMIR FPA Heater | Off | Nominal |
| Scan Assembly | A On; B Off | Nominal |
| SDSM | Off | Nominal |
| SRCA | Off | Nominal |
| PS1 Survival Heater | Enabled | Nominal |
| PS2 Survival Heater | Enabled | Nominal |
| Timing Generator | A On; B Off | Nominal |
| Flight Software | Rev BD + 5 sets of patches
|
Nominal |
| Inhibit Ids Set | None | Nominal |
| TMON 66 | Disabled | Nominal |
| TMON 67 | Disabled | Nominal |
| TMON 68 | Enabled | Nominal |
| TMON 69 | Disabled | Nominal |
This Week's Completed MODIS Activities:
Friday, April 19, 2002
2002/109 20:57:26 - 21:49:05 ATC OA22: SRCA full spectral side A, part 1
2002/109 22:53:24 - 23:28:09 ATC OA22: SRCA full spectral side A, part 2
Saturday, April 20, 2002
2002/110 00:15:24 - 01:06:40 ATC OA22: SRCA full spectral side A, part 3
2002/110 02:09:36 - 02:47:34 ATC OA22: SRCA full spectral side A, part 4
2002/110 04:36:33 - 04:39:04 ATC OA27: PV ECAL
2002/110 08:00:00 ATC OA26: BB to 270K
Sunday, April 21, 2002
2002/111 02:00:00 ATC OA26: BB to 280K
2002/111 06:00:00 ATC OA26: BB to 285K
2002/111 09:00:00 ATC OA26: BB to 290K
2002/111 13:00:00 ATC OA26: BB to 295K
2002/111 13:00:30 ATC OA26: BB duty cycle set to FULL
2002/111 15:00:00 ATC OA26: BB to 300K
2002/111 17:00:00 ATC OA26: BB to 315K
2002/111 20:00:00 ATC OA26: BB to 270K
2002/111 20:00:30 ATC OA26: BB duty cycle set to THIRD
Monday, April 22, 2002
2002/112 16:00:00 ATC OA26: BB to 290K
Tuesday, April 23, 2002
None
Wednesday, April 24, 2002
2002/114 20:30:29 ATC OA16: SDSM SCREENED Fixed Sun view, side A
2002/114 22:09:21 ATC OA15: SDSM OPEN Fixed SD view, side A
Thursday, April 25, 2002
None
Friday, April 26, 2002
None
This Week's Scheduled MODIS Activities Not Completed:
None
Upcoming Week's MODIS Events:
None
Maneuvers:
There will not be a MODIS Lunar Calibration at the beginning or end of April because the required roll angle will exceed the allowable limit. Expect the next possible MODIS Lunar Calibration toward the end of May.
The sixth Terra inclination maneuver has been postponed (originally scheduled for 4/2/2002). The new date for the maneuver is not yet known. The maneuver will only be done if it does not interfere with any Aqua spacecraft launch activities.
The Terra Deep Space Calibration Maneuver is still postponed. The maneuver date is not expected until late summer of 2002.
MODIS Anomalies:
Formatter Error Events:
The current patches loaded into the MODIS Formatter record the number of formatter error events (but not the address where they occurred). Statistics for the error rate will soon be generated and placed on the Internet. For data on the error events, please see the link below.
The most recent error tracking spreadsheets can be retrieved from:
ftp://ftp.mcst.ssai.biz/pub/permanent/IOT/am1/analysis/FR_events/
An MS Excel spreadsheet called, AM1_FR_error_rollovers_current.xls contains the data for the times each error count "roll over" occurs.
General Instrument Comments:
MODIS is in A-side Science Mode.
MODIS Telemetry Trends:
All systems appear to be functioning properly. Tracking of the Formatter Error Rate has resumed.
Non-MODIS Significant Events:
Science Data Loss Reports can be viewed at:
http://jupiter02.gsfc.nasa.gov:591/ssrloss/
Select "Search Data Losses" and choose Data Type: MOD
Then press the big SUBMIT button.
Limited Life Item Status:
SRCA 10W Lamp #1: 200.0 of 500 hours
SRCA 10W Lamp #2: 151.9 of 500 hours
SRCA 10W Lamp #3: 161.1 of 500 hours
SRCA 10W Lamp #4: 61.5 of 500 hours
SRCA 1W Lamp #1: 559.3 of 4000 hours
SRCA 1W Lamp #2: 276.3 of 4000 hours
Solar Diffuser Door: 1847 of 3022 Movements
Nadir Aperture Door: 536 of 1316 Movements
Space View Door: 439 of 1316 Movements