MODIS IOT Terra Weekly Report
Mission Operations Days: 2021/247 through 2021/253
September 04, 2021 00:00:00 GMT to September 10, 2021 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, September 04, 2021
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None
Sunday, September 05, 2021
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None
Monday, September 06, 2021
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None
Tuesday September, 07 2021
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2021/250 20:01:10 - 20:09:57 ATC MOD_OA16_SDSM_SCRN_NO_DOOR_A.4
OA-16: SD/SDSM screened side A, no door movement.
Wednesday, September 08, 2021
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2021/251 21:00:00 ATC MOD_OA26_BB_270K_A.2 BB Temp Set to 270K for CP A Coefficients
Thursday, September 09, 2021
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2021/252 15:00:00 ATC MOD_OA26_BB_280K_A.2 BB Temp Set to 280K for CP A Coefficients
2021/252 19:00:00 ATC MOD_OA26_BB_285K_A.2 BB Temp Set to 285K for CP A Coefficients
2021/252 22:00:00 ATC MOD_OA26_BB_290K_A.2 BB Temp Set to 290K for CP A Coefficients
Friday, September 10, 2021
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2021/253 02:00:00 ATC MOD_OA26_BB_315K_A.2 BB Temp Set to 315K for CP A Coefficients
2021/253 02:00:30 ATC MOD_OA26_BB_DCYCLE_FULL.1 Set blackbody heater duty cycle to FULL
2021/253 05:00:00 ATC MOD_OA26_BB_270K_A.2 BB Temp Set to 270K for CP A Coefficients
2021/253 05:00:30 ATC MOD_OA26_BB_DCYCLE_THIRD.1 Set blackbody heater duty cycle to THIRD
This Week's Scheduled MODIS Activities Not Completed:
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None
Next Month's Upcoming MODIS Events:
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September’s routine activities include an SDSM Closed on 2021/250, a BB WUCD on 2021/251-254, a Lunar Roll on 2021/268, and an SDSM Closed on 2021/271.
Non-routine activities include a Lunar Roll on 2021/268.
Next Week's MODIS Events:
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Saturday, September 11, 2021
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2021/254 02:00:00 ATC MOD_OA26_BB_285K_A.2 BB Temp Set to 285K for CP A Coefficient
Maneuvers:
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Terra DMU # 130 took place on 2021/245.
Terra Lunar Roll will take place on 2021/268.
MODIS Anomalies:
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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.
Note that a new STS File scheduling procedure was implemented on 2021/122. The STS Files create alternating orbits allowing for coverage of the poles and lengthen Night Rate collection by varying amounts each orbit. As a result of the Terra MODIS PWA failure on 2021/180, the STS procedure was changed on 2021/183 to previous method with consistent 4-orbits using larger delta times to account for buffer space. On 2021/184 at 20:00:00 this change was reverted back to the dynamic procedure using varying daylight times.
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: 389.9 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: 145.2 of 500 hours
SRCA 1W Lamp #1: 592.1 of 4000 hours
SRCA 1W Lamp #2: 320.5 of 4000 hours
Solar Diffuser Door: 2148 of 3022 Movements
Nadir Aperture Door: 542 of 1316 Movements
Space View Door: 445 of 1316 Movements