Mission Operations Days: 2012/259 through 2012/265
September 15, 2012 20:00:00 GMT to September 21, 2012 20:00:00 GMT
Terra Spacecraft and MODIS Instrument Status:
| AM-1 "Terra" is in Normal Mode PFM MODIS is in A-Side Nominal Science Mode (Cross Strapped with FR B) |
||
|---|---|---|
| Component | State(s) | Comment |
| Blackbody | A On (290K); B Off | Nominal Science Mode |
| Calibration Electronics | A On; B Off | Nominal Science Mode |
| Control Processor | A On; B Off | Nominal Science Mode |
| Nadir Door | Unlatched, Open | Nominal Science Mode |
| Space View Door | Unlatched, Open | Nominal Science Mode |
| Solar Diffuser Door | Unlatched, Screened | Permanent Configuration |
| FDDI Formatter | A On; B Off | Nominal Science Mode |
| FDDI Port | A On; B Off | Nominal Science Mode |
| FIFO Memory | #1 & #2 On; #3 & #4 Off | Nominal Science Mode |
| Format Processor | A Off; B On | Nominal Science Mode |
| Power Supplies | #1 On, #2 Off | Nominal Science Mode |
| PV VIS FPA | A On; B Off | Nominal Science Mode |
| PV NIR FPA | A On; B Off | Nominal Science Mode |
| PV SMIR FPA | A On; B Off | Nominal Science Mode |
| PV LWIR FPA | A On; B Off | Nominal Science Mode |
| PC LWIR FPA | A On; B Off | Nominal Science Mode |
| RC Outgas Heaters | All 3 (CS, IS, OS) Off | Nominal Science Mode |
| RC LWIR FPA Heater | On (83K) | Nominal Science Mode |
| RC SMIR FPA Heater | Off | Nominal Science Mode |
| Scan Assembly | A On; B Off | Nominal Science Mode |
| SDSM | Off | Nominal Science Mode |
| SRCA | Off
|
Nominal Science Mode |
| PS1 Survival Heater | Enabled | Nominal Science Mode |
| PS2 Survival Heater | Enabled | Nominal Science Mode |
| Timing Generator | A On; B Off | Nominal Science Mode |
| Flight Software | Rev BD + 11 sets of patches
|
Nominal Science Mode |
| Inhibit Ids Set | none | Nominal Science Mode |
| TMON 66 | Disabled | Nominal Science Mode |
| TMON 67 | Disabled | Nominal Science Mode |
| TMON 68 | Enabled | Nominal Science Mode |
| TMON 69 | Disabled | Nominal Science Mode |
This Week's Completed MODIS Activities:
Saturday, September 15, 2012
None
Sunday, September 16, 2012
None
Monday, September 17, 2012
None
Tuesday, September 18, 2012
2012/262 21:20:23-21:29:11 ATC MOD_OA16_SDSM_SCRN_NO_DOOR_A.4
OA-16: SD/SDSM screened side A, no door movement
Wednesday, September 19, 2012
2012/263 21:00:00 ATC MOD_OA26_BB_270K_A.2
Set blackbody temperature to 270K on the A Side
Thursday, September 20, 2012
2012/264 15:00:00 ATC MOD_OA26_BB_280K_A.2
Set blackbody temperature to 280K on the A Side
2012/264 19:00:00 ATC MOD_OA26_BB_285K_A.2
Set blackbody temperature to 285K on the A Side
2012/264 22:00:00 ATC MOD_OA26_BB_290K_A.2
Set blackbody temperature to 290K on the A Side
Friday, September 21, 2012
2012/265 02:00:00 ATC MOD_OA26_BB_315K_A.2
Set blackbody temperature to 315K on the A Side
2012/265 02:00:30 ATC MOD_OA26_BB_DCYCLE_FULL.1
Set blackbody heater duty cycle to FULL
2012/265 05:00:00 ATC MOD_OA26_BB_270K_A.2
Set blackbody temperature to 270K on the A Side
2012/265 05:00:30 ATC MOD_OA26_BB_DCYCLE_THIRD.1
Set blackbody heater duty cycle to THIRD
This Week's Scheduled MODIS Activities Not Completed:
None
This Month's Upcoming MODIS Events:
Calibrations for September 2012 will include a Lunar Roll (DOY 249), an SDSM Screened (DOY 262), an SRCA Radiometric (DOY 254), and a Black Body Cycle (DOY 263-266).
Saturday, September 22, 2012
2012/266 02:00:00 ATC MOD_OA26_BB_290K_A.2
Set blackbody temperature to 290K on the A Side
Maneuvers:
There will be a Terra Inclination Adjustment Maneuver (IAM) #32 on DOY 279 (10/05/2012). Maneuver start time is set for 279/15:09:46 and maneuver end time is set for 279/15:15:06. The projected loss of pointing accuracy times are 279/13:09:46-17:45:06.
MODIS Anomalies:
None
General Instrument Comments:
MODIS is in Science Mode, using all A-side components, but cross-strapped to Formatter B, with the blackbody maintained at 290K and the Solar Diffuser Door at the Screened position.
MODIS Telemetry Trends:
Nominal telemetry trending is ongoing.
Non-MODIS Significant Events:
The EMOS mission status webpage (which includes instrument data loss records) can be found at the following URL. Note that a password is now required to access the EOS mission links web pages. There are directions at the URL below for how to obtain a username/password.
Following the Inclination Maneuver on DOY 2009/286 (10/13/09), Terra experienced a Hex Bay Battery (BBAT) cell #50 failure and simultaneously (or close to same time) experienced a Battery Heater Control Electronic anomaly which prevents controlling the temperature for 5 of the 9 heater groups within BBAT. Cell #50 has failed and is non-recoverable. Battery temperatures have stabilized and battery cell temperatures are within an acceptable range. Terra has a robust power system with two 54 cell batteries that feed a power control system that maintains a stable 120V spacecraft power bus even if multiple cells fail. At this point in time the Terra Battery Anomaly is not affecting science data collection and all MODIS systems are nominal. There has been little if any impact to operations since the issue began. All operations are nominal.
http://jupiter02.gsfc.nasa.gov/
Limited Life Item Status:
SRCA 10W Lamp #1: 307.3 of 500 hours
SRCA 10W Lamp #2: 172.1 of 500 hours
SRCA 10W Lamp #3: 190.3 of 500 hours
SRCA 10W Lamp #4: 105.4 of 500 hours
SRCA 1W Lamp #1: 585.2 of 4000 hours
SRCA 1W Lamp #2: 282.0 of 4000 hours
Solar Diffuser Door: 2146 of 3022 Movements
Nadir Aperture Door: 540 of 1316 Movements
Space View Door: 443 of 1316 Movements