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MODIS IOT Terra Weekly Report
Mission Operations Days: 2005/232 through 2005/238
August 19, 2005 20:00:00 GMT to August 26, 2005 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, August 20, 2005None
Sunday, August 21, 2005None
Monday, August 22, 2005None
Tuesday, August 23, 2005Lunar Roll Maneuver (-6.8086 deg roll)
2005/235 17:08:09-17:39:54 ATC MOD_OA03_FR_NIGHT_RATE (03:23 early)
2005/235 17:39:54-17:46:40 ATC MOD_OA08_ROLL_MAN
2005/235 18:04:14-18:50:26 ATC MOD_OA03_FR_DAY_RATE (03:23 late)
2005/235 21:10:44-21:19:32 ATC MOD_OA16_SDSM_SCRN_NO_DOOR_A.4
OA-16: SD/SDSM screened side A, no door movement.
2005/235 23:25:00-23:25:31 ATC MOD_SRCA_11_3_8_2_SETUP_CC.1
SRCA setup activity using lamp #4 in lieu of lamp #2 and in constant current feedback mode
2005/235 23:32:00-00:30:11 ATC MOD_OA23_SRCA_FULL_SPAT_A.4
OA-23: SRCA Full Spatial Calibration - A Side
Data collection from 23:47:54-00:28:56
None
Thursday, August 25, 2005None
Friday, August 26, 2005None
This Week’s Scheduled MODIS Activities Not Completed:
None
Upcoming MODIS Events:
Calibrations for August will include biweekly SDSM and quarterly SRCA Full Spatial.
Maneuvers:
The next Terra MODIS Lunar Calibration Roll will be on DOY 2005/265 (September 22, 2005). The roll angle will be -12.4733 degrees. Data collect will be from 06:28:28 – 06:34:58.
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:
On DOY 2005/238, SSR PWA containing supersets 54 and 55, was lost. These supersets belonged to the MODIS science buffer. Those supersets were moved to the Bad List, and because of this, a data loss between 23:09:46 and 23:23:57 should be expected. Science data that was contained within those supersets was also lost. This PWA loss is similar to the ones that have occurred in the past. The FOT is currently discussing plans to recycle the SSR in the hopes that it will bring back some of the lost PWA’s.
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.
http://jupiter02.gsfc.nasa.gov/links/links.htmLimited Life Item Status:
SRCA 10W Lamp #1: 246.5 of 500 hours
SRCA 10W Lamp #2: 172.1 of 500 hours
SRCA 10W Lamp #3: 186.3 of 500 hours
SRCA 10W Lamp #4: 75.8 of 500 hours
SRCA 1W Lamp #1: 568.7 of 4000 hours
SRCA 1W Lamp #2: 278.7 of 4000 hours
Solar Diffuser Door: 2146 of 3022 Movements
Nadir Aperture Door: 538 of 1316 Movements
Space View Door: 441 of 1316 Movements
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Last Update: Wednesday, 07-Sep-2005 10:30:50 EDT
