Mission Operations Days: 2012/175 through 2012/181
June 23, 2012 20:00:00 GMT to June 29, 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, June 23, 2012
None
Sunday, June 24, 2012
None
Monday, June 25, 2012
None
Tuesday, June 26, 2012
2012/178 21:38:51-21:47:39 ATC MOD_OA16_SDSM_SCRN_NO_DOOR_A.4
OA-16: SD/SDSM screened side A, no door movement.
Wednesday, June 27, 2012
2012/179 21:00:00 ATC MOD_OA26_BB_270K_A.2
Set blackbody temperature to 270K on the A Side
Thursday, June 28, 2012
2012/180 15:00:00 ATC MOD_OA26_BB_280K_A.2
Set blackbody temperature to 280K on the A Side
2012/180 18:29:07 MOD_MEM_DUMP (‘BB_OUTPUT’,0,0,1,28)
MODIS Ideal Black Body Table Dump – Partitions 1-28
2012/180 18:35:18 MOD_MEM_DUMP (‘BB_OUTPUT’,0,0,29,57)
MODIS Ideal Black Body Table Dump – Partitions 29-57
2012/180 19:00:00 ATC MOD_OA26_BB_285K_A.2
Set blackbody temperature to 285K on the A Side
2012/180 22:00:00 ATC MOD_OA26_BB_290K_A.2
Set blackbody temperature to 290K on the A Side
Friday, June 29, 2012
2012/181 02:00:00 ATC MOD_OA26_BB_315K_A.2
Set blackbody temperature to 315K on the A Side
2012/181 02:00:30 ATC MOD_OA26_BB_DCYCLE_FULL.1
Set blackbody heater duty cycle to FULL
2012/181 05:00:00 ATC MOD_OA26_BB_270K_A.2
Set blackbody temperature to 270K on the A Side
2012/181 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 June 2012 will include an SRCA Spatial (DOY 156), an SDSM Screened (DOY 157), a Nighttime Day Mode Observation (DOY 160), a Lunar Roll (DOY 160), an SRCA Radiometric (DOY 170), another SDSM Screened (DOY 178), and a Black Body Cycle (DOY 179-182).
Saturday, June 30, 2012
2012/182 02:00:00 ATC MOD_OA26_BB_290K_A.2
Set blackbody temperature to 290K on the A Side
Maneuvers:
None
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:
*Terra will perform a Leap Second operation on DOY 183 at 00:00:00 (06/30/2012-07/01/2012). Expect any instrument observations ongoing during the Leap Second operation to incur a 1 second data loss at that time.*
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 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: 304.8 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: 104.5 of 500 hours
SRCA 1W Lamp #1: 584.8 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