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MODIS IOT Terra Weekly Report
Mission Operations Days: 2003/312 through 2003/318
November 7, 2003 20:00:00 GMT to November 14, 2003 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, November 8, 2003None
Sunday, November 9, 2003None
Monday, November 10, 2003None
Tuesday, November 11, 20032003/315 21:38:38-21:47:25 ATC MOD_OA16_SDSM_SCRN_NO_DOOR_A.4
OA-16: SD/SDSM screened side A, no door movement
2003/315 22:27:28-22:51:59 ATC MOD_OA20_SRCA_10W_RAD_A.3
OA-20: SRCA 10W Continuous Radiometric - A Side, Using Lamp #1
Data collection is from 22:46:58-22:51:59 (in S/C Night)
None
Thursday, November 13, 2003None
Friday, November 14, 2003None
This Week’s Scheduled MODIS Activities Not Completed:
None
Upcoming MODIS Events:
Calibrations for November include monthly SRCA Full Radiometric, monthly 10W Radiometric, and weekly SD/SDSM.
Tuesday, November 18, 20032003/322 20:06:38-20:15:26 ATC MOD_OA16_SDSM_SCRN_NO_DOOR_A.4
OA-16: SD/SDSM screened side A, no door movement
2003/322 22:30:00 ATC MOD_SRCA_NOMINAL_SETUP.4
Sets up nominal SRCA lamp configuration
2003/322 22:35:15-23:32:16 ATC MOD_OA23_SRCA_FULL_SPAT_A.3
OA-23: SRCA Full Spatial Calibration - A Side
Data collection from 22:51:09-23:32:15
Maneuvers:
The Lunar calibration that would have occurred on DOY 2003/218 (November 14, 2003) was declined based on concerns over predicted Leonid Meteor Shower activity. The next Lunar calibration will occur on DOY 2003/347 (December 13, 2003), with a roll angle of –6.4083 degrees and a data collect time from 18:12:41 to 18:19:11.
MODIS Anomalies:
Terra Solid State Recorder Anomaly
Although not directly the result of a MODIS problem, the most recent Printed Wire Assembly (PWA) failures in the Terra Solid State Recorder (SSR) do affect MODIS data. See the Non-MODIS Significant Events section below for more details.
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 Solid State Recorder Anomaly
Overview:
The SSR Anomaly is still under investigation. MODIS currently is operating with 34 Supersets allotted for its buffer. There are plans in the works for possibly power cycling the SSR to get back PWA’s that are in the Bad List, but no date has yet been set. There are no current plans for a change in science data capture rates. For details, see previous reports.
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: 222.1 of 500 hours
SRCA 10W Lamp #2: 163.0 of 500 hours
SRCA 10W Lamp #3: 172.2 of 500 hours
SRCA 10W Lamp #4: 62.2 of 500 hours
SRCA 1W Lamp #1: 564.6 of 4000 hours
SRCA 1W Lamp #2: 276.7 of 4000 hours
Solar Diffuser Door: 2146 of 3022 Movements
Nadir Aperture Door: 536 of 1316 Movements
Space View Door: 439 of 1316 Movements
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Last Update: Tuesday, 12-Oct-2004 17:27:18 EDT
