MODIS IOT Terra Weekly Report
Mission Operations Days: 2023/070 through 2023/076
March 11, 2023 00:00:00 GMT to March 17, 2023 23:59:59 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) |
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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, March 11, 2023
--
Lunar Roll Maneuver (-17.8479 degrees)
2023/070 19:00:03 ATC MOD_OA04_NIGHT_RATE.1 (1:53 early)
2023/070 19:08:40-19:12:26 ATC MOD_OA08_ROLL_MAN.3
2023/070 19:53:02 ATC MOD_OA03_DAY_RATE.2 (1:53 late)
Sunday, March 12, 2023
--
None
Monday, March 13, 2023
--
None
Tuesday, March 14, 2023
--
None
Wednesday, March 15, 2023
--
None
Thursday, March 16, 2023
--
2023/075 20:47:12-20:47:41 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
2023/075 20:50:12-21:21:37 ATC MOD_OA19_SRCA_FULL_RAD.1
OA-19: SRCA Full Radiometric Calibration.
S/C Night 20:57:08-21:29:42
Data Collect 21:06:13-21:21:36
Friday, March 17, 2023
--
None
This Week's Scheduled MODIS Activities Not Completed:
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None
This Month's MODIS Events:
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March’s routine activities include an SDSM Closed on 2023/066, a Lunar Roll on 2023/070, an SRCA Radiometric on 2023/075, and an SDSM Closed on 2023/080.
Non-routine activities include a Lunar Roll 2023/070.
Next Week's MODIS Events:
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Tuesday, March 21, 2023
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2023/080 21:38:06-21:46:54 ATC MOD_OA16_SDSM_SCRN_NO_DOOR_A.4
OA-16: SD/SDSM screen side A, no door movement.
Maneuvers:
---
Terra Lunar Roll took place on 2023/070.
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 nominally maintained at 290K and the Solar Diffuser Door at the Screened position.
Note that the BlackBody will be maintained at 285K.
With the recent Terra SSR reset, MODIS was allocated a full complement of PWAs and no longer needs to reduce its data rate. Starting with September 26, 2021 (2021/269) at 0000z, the MODIS formatter commanding (day rate/night rate) will be synchronized with terminator crossing, which is its nominal timing.
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.
Limited Life Item Status:
SRCA 10W Lamp #1: 400.0 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: 152.0 of 500 hours
SRCA 1W Lamp #1: 596.9 of 4000 hours
SRCA 1W Lamp #2: 327.0 of 4000 hours
Solar Diffuser Door: 2148 of 3022 Movements
Nadir Aperture Door: 544 of 1316 Movements
Space View Door: 449 of 1316 Movements