Mission Operations Days: 2002/089 to 2002/095
March 30, 2002 00:00:00 GMT to April 05, 2002 00:00:00 GMT
MODIS is in Science Mode, producing Science Data. Regularly scheduled calibration activities will resume next week.
The patch to remove the FR OFF command from the CP Mode Transition to Safe Mode was successfully loaded. Any future Safe Mode transitions will not cause the loss of the FR patches that protect the FR from Watchdog Resets.
Upcoming plans include evaluating whether or not to write the formatter (KME_FAST) patches to EEPROM.
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:
Saturday, March 30, 2002
None
Sunday, March 31, 2002
None
Monday, April 1, 2002
None
Tuesday, April 2, 2002
2002/092 18:36:07-18:38:08 Real-Time Memory Dump (CP Table 11 - Mode Transitions) MOD_MEM_DUMP(88, 250, 0, 0, 1, 8)
2002/092 18:38:57-18:39:34 Real-Time Memory Dump (FR "ANOMALY2" Location) MOD_MEM_DUMP(6, 2, 11706, 0, 1, 1)
2002/092 18:36:07-18:38:08 Real-Time Memory Dump (FR Error Counting Location) MOD_MEM_DUMP(6, 21, 45056, 0, 1, 1)
2002/092 19:08:17-19:08:40 Real-Time Memory Load (CP Table 11 - Delete Safe Mode FR Off) MOD_MEM_LOAD('AM1_MPR_MODIS_TABLE_11_NO_FR_OFF', 1, 'N', 'DISABLE', 1, 1)
2002/092 19:08:45-19:10:06 Real-Time Memory Load (FR Error Counting Patch) MOD_MEM_LOAD('AM1_MPR_MODIS_FR_COUNT', 21, 'N', 'DISABLE', 1, 1)
2002/092 19:10:32-19:11:14 Real-Time Memory Load (Call out to execute the Counting Patch) MOD_MEM_LOAD('AM1_MPR_MODIS_FR_ANOMALY2', 2, 'N', 'DISABLE', 1, 1)
2002/092 19:11:39-19:14:07 Real-Time Memory Dump (CP Table 11 - Mode Transitions) MOD_MEM_DUMP(88, 250, 0, 0, 1, 8)
2002/092 19:15:38-19:16:21 Real-Time Memory Dump (FR "ANOMALY2" Location) MOD_MEM_DUMP(6, 2, 11706, 0, 1, 1)
2002/092 19:16:47-19:17:31 Real-Time Memory Dump (FR Error Counting Location) MOD_MEM_DUMP(6, 21, 45056, 0, 1, 1)
2002/092 19:42:35-19:42:45 Real-Time Set Yellow Alarms on FR Error Mask MOD_ALARMS_CP_ST_07('ENABLE')
2002/092 19:11:39-19:14:07 Real-Time Memory Dump (CP Table 11 - Mode Transitions) The ground software did not capture a portion of the earlier dump. MOD_MEM_DUMP(88, 32, 128, 0, 1, 1)
Wednesday, April 3, 2002
None
Thursday, April 4, 2002
None
Friday, April 5, 2002
None
This Week's Scheduled MODIS Activities Not Completed:
None
Upcoming Week's MODIS Events:
This month's calibration activities will include SDSM Open and Screened, SRCA Full Radiometric, SRCA Full Spectral, BB Heating Cycle, and a PV ECAL.
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 next Drag Make Up (DMU) Maneuver is scheduled for DOY 100 (4/10/2002) at 20:20:35 for 25 seconds.
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:
See description at the top of this report.
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 pre-safe mode 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: 197.5 of 500 hours
SRCA 10W Lamp #2: 150.6 of 500 hours
SRCA 10W Lamp #3: 159.8 of 500 hours
SRCA 10W Lamp #4: 61.5 of 500 hours
SRCA 1W Lamp #1: 559.2 of 4000 hours
SRCA 1W Lamp #2: 276.3 of 4000 hours
Solar Diffuser Door: 1835 of 3022 Movements
Nadir Aperture Door: 536 of 1316 Movements
Space View Door: 439 of 1316 Movements