Mission Operations Days: 2011/134 through 2011/154
May 14, 2011 20:00:00 GMT to June 03, 2011 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, May 14, 2011
None
Sunday, May 15, 2011
None
Monday, May 16, 2011
None
Tuesday, May 17, 2011
None
Wednesday, May 18, 2011
None
Thursday, May 19, 2011
None
Friday, May 20, 2011
None
Saturday, May 21, 2011
Lunar Roll Maneuver (-8.8467 degrees)
2011/141 17:49:34 ATC MOD_OA03_FR_NIGHT_RATE.1 (03:23 early)
2011/141 18:01:41-18:08:27 ATC MOD_OA08_ROLL_MAN.3
2011/141 18:45:39 ATC MOD_OA03_FR_DAY_RATE.2 (03:23 late)
Sunday, May 22, 2011
2011/142 21:09:54-21:12:15 ATC MOD_OA27_PV_ECAL.3
OA-27: Photovoltaic bands electronics calibration.
Centered on S/C maximum latitude at 21:11:00.
Monday, May 23, 2011
2011/143 20:56:45-20:57:14 ATC MOD_SRCA_9_8_2_SETUP_CC.1
SRCA setup activity using 10W lamps 1 and 4, and 1W lamp 5, in constant
current feedback mode
2011/143 20:59:45-21:31:10 ATC MOD_OA19_SRCA_FULL_RAD.1
OA-19: SRCA Full Radiometric Calibration.
Data collection 21:15:46-21:31:09 (centered on S/C Night)
S/C Night 21:05:50-21:40:06.
Tuesday, May 24, 2011
2011/144 20:43:59-20:52:47 ATC MOD_OA16_SDSM_SCRN_NO_DOOR_A.4
OA-16: SD/SDSM screened side A, no door movement.
Wednesday, May 25, 2011
None
Thursday, May 26, 2011
None
Friday, May 27, 2011
None
Saturday, May 28, 2011
None
Sunday, May 29, 2011
None
Monday, May 30, 2011
None
Tuesday, May 31, 2011
None
Wednesday, June 01, 2011
None
Thursday, June 02, 2011
None
Friday, June 03, 2011
None
This Week's Scheduled MODIS Activities Not Completed:
None
This Month's Upcoming MODIS Events:
Calibrations for May and June will include a Lunar Roll (DOY 141), a PV Ecal (DOY 142), an SRCA Radiometric (DOY 143), an SDSM Screened (DOY 144), an SRCA Radiometric (DOY 164), an SDSM Screened (DOY 165), and Lunar Roll (DOY 171).
Maneuvers:
There will be a Terra Drag Make Up Maneuver (DMU) # 62 on DOY 166 (06/15/2011). The maneuver start time is set for 166/16:15:00 and the maneuver end time is set for 166/16:15:05. The preliminary burn duration is 5 seconds. The preliminary loss of pointing accuracy times are 166/14:45:00 - 18:45:05.
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 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. Terra is capable of continuing nominal operations with multiple cell failures. Science data acquisition has remained nominal throughout the anomaly and troubleshooting timeframe. Information will be updated periodically. 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: 298.2 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: 99.9 of 500 hours
SRCA 1W Lamp #1: 581.4 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