MODIS IOT Terra Weekly Report
Mission Operations Days: 2026/010 through 2026/016
Mission Operations Days: 2026/010 through 2026/016
January 10, 2026 00:00:00 GMT to January 16, 2026 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) |
||
|---|---|---|
| Component | State(s) | Comment |
| Blackbody | A On (285K); 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:
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Saturday, January 10, 2026
--
2026/010 21:15:38 - 21:16:07 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
2026/010 21:18:38 - 21:50:03 ATC MOD_OA19_SRCA_FULL_RAD.1
OA-19: SRCA Full Radiometric Calibration.
S/C Night 21:27:47 - 21:55:55
Data Collect 21:34:39 - 21:50:02
Sunday, January 11, 2026
--
2026/011 20:59:37 - 21:02:08 ATC MOD_OA27_PV_ECAL.3
OA-27: Photovoltaic bands electronics calibration.
Centered on S/C maximum latitude
Monday, January 12, 2026
--
None
Tuesday, January 13, 2026
--
None
Wednesday, January 14, 2026
--
None
Thursday, January 15, 2026
--
None
Friday, January 16, 2026
--
None
This Week's Scheduled MODIS Activities Not Completed:
---
None
This Month's MODIS Events:
---
January's routine activities include a regular SD/SDSM calibration (2026/020), a Lunar Roll Calibration (2026/005, 006), a Blackbody Warm Up/Cool Down Cycle (2026/021), a PV Ecal (2026/011), a SRCA 1W Calibration (2026/025), and a SRCA Radiometric Calibration (2026/010).
Next Week's MODIS Events:
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Tuesday, January 20, 2026
--
2026/020 20:17:07 - 20:25:55 ATC MOD_OA16_SDSM_SCRN_NO_DOOR_A.4
OA-16: SD/SDSM screen side A, no door movement.
Wednesday, January 21, 2026
--
2026/021 21:00:00 ATC MOD_OA26_BB_270K_A.2 BB Temp Set to 270K for CP A Coefficients
Thursday, January 22, 2026
--
2026/022 15:00:00 ATC MOD_OA26_BB_280K_A.2 BB Temp Set to 280K for CP A Coefficients
2026/022 19:00:00 ATC MOD_OA26_BB_285K_A.2 BB Temp Set to 285K for CP A Coefficients
2026/022 22:00:00 ATC MOD_OA26_BB_290K_A.2 BB Temp Set to 290K for CP A Coefficients
Friday, January 23, 2026
--
2026/023 02:00:00 ATC MOD_OA26_BB_315K_A.2 BB Temp Set to 315K for CP A Coefficients
2026/023 02:00:30 ATC MOD_OA26_BB_DCYCLE_FULL.1 Set blackbody heater duty cycle to FULL
2026/023 05:00:00 ATC MOD_OA26_BB_270K_A.2 BB Temp Set to 270K for CP A Coefficients
2026/023 05:00:30 ATC MOD_OA26_BB_DCYCLE_THIRD.1 Set blackbody heater duty cycle to THIRD
Saturday, January 24, 2026
--
2026/024 02:00:00 ATC MOD_OA26_BB_285K_A.2 BB Temp Set to 285K for CP A Coefficients
Sunday, January 25, 2026
--
2026/025 11:27:37-11:28:06 ATC MOD_SRCA_9_8_1_SETUP_CC.1
SRCA setup activity using 10W lamps 1 and 4, and 1W lamp 6 (spare), in constant current feedback mode
2026/025 11:30:37-15:06:32 ATC MOD_OA21_SRCA_1W_RAD_A.5
OA-21: 1W Radiometric Continuous Calibration.
Data collection: 11:46:31-15:06:32 (Covering 15 minutes S/C night, day, night, day, and 15 minutes S/C night)
Maneuvers:
---
None
MODIS Anomalies:
---
None
---
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 285K and the Solar Diffuser Door at the Screened position.
Note that the BlackBody will be maintained at 285K.
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.
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: 411.7 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: 157.5 of 500 hours
SRCA 1W Lamp #1: 599.4 of 4000 hours
SRCA 1W Lamp #2: 333.5 of 4000 hours
Solar Diffuser Door: 2148 of 3022 Movements
Nadir Aperture Door: 544 of 1316 Movements
Space View Door: 449 of 1316 Movements