MODIS IOT Aqua Weekly Report
Mission Operations Days: 2015/164 through 2015/170
June 13, 2015 00:00:00 GMT to June 19, 2015 23:59:59 GMT
Aqua Spacecraft and MODIS Instrument Status:
| PM-1 "Aqua" is in Fine Pointing Normal Mode FM1 MODIS is in B-Side Nominal Science Mode |
||
|---|---|---|
| Component | State(s) | Comment |
| Blackbody | A Off; B On (285K) | Nominal Science Mode |
| Calibration Electronics | A Off; B On | Nominal Science Mode |
| Control Processor | A Off; B On | Nominal Science Mode |
| Nadir Door | Unlatched, Open | Nominal Science Mode |
| Space View Door | Unlatched, Open | Nominal Science Mode |
| Solar Diffuser Door | Unlatched, Closed | Nominal Science Mode |
| FDDI Formatter | A Off; B On | Nominal Science Mode |
| FDDI Port | A Off; B On | Nominal Science Mode |
| FIFO Memory | #1 & #2 Off; #3 & #4 On | Nominal Science Mode |
| Format Processor | A Off; B On | Nominal Science Mode |
| Power Supplies | #1 Off, #2 On | Nominal Science Mode |
| PV VIS FPA | A Off; B On | Nominal Science Mode |
| PV NIR FPA | A Off; B On | Nominal Science Mode |
| PV SMIR FPA | A Off; B On | Nominal Science Mode |
| PV LWIR FPA | A Off; B On | Nominal Science Mode |
| PC LWIR FPA | A Off; B On | Nominal Science Mode |
| RC Outgas Heaters | All 3 (CS, IS, OS) Off | Nominal Science Mode |
| RC LWIR FPA Heater | Off | Nominal Science Mode |
| RC SMIR FPA Heater | On (83K) | Nominal Science Mode |
| Scan Assembly | A Off; B On | Nominal Science Mode |
| SDSM | Off | Nominal Science Mode |
| SRCA | Off
|
Nominal Science Mode |
| PS1 Survival Heaters | Enabled | Nominal Science Mode |
| PS2 Survival Heaters | Enabled | Nominal Science Mode |
| Timing Generator | A Off; B On | Nominal Science Mode |
| Flight Software | Rev BJ + 1 set of patches
|
Nominal Science Mode |
| Inhibit Ids Set | None | Nominal Science Mode |
This Week's Completed MODIS Activities:
Saturday, June 13, 2015
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None
Sunday, June 14, 2015
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None
Monday, June 15, 2015
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2015/166 20:16:54-20:30:52 MCL MOD_OA16_SDSM_SCREEN.2
OA-16: SD/SDSM Screened - B-Side
Tuesday, June 16, 2015
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2015/167 20:19:48-20:20:04 MOD_SRCA_SETUP_L1_L4_L5_CC.1
SRCA setup activity using lamps 1, 4, and 5, and in constant current feedback mode
2015/167 20:22:48-20:53:13 MOD_OA19_SRCA_FULL_RAD.2
OA-19: SRCA Full Radiometric Calibration - B Side
Data collection 20:38:49-20:53:12.
S/C Night 20:28:56-21:03:07.
Wednesday, June 17, 2015
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None
Thursday, June 18, 2015
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2015/169 20:11:24-20:11:40 MOD_SRCA_SETUP_10W_L4_CC.2
SRCA setup activity using lamp 4 in constant current feedback mode
2015/169 20:14:24-20:35:54 MOD_OA20_SRCA_10W_RAD_CUR.4
OA-20: SRCA 10W Radiometric Calibration - B Side
Data collection 20:30:21-20:35:54.
S/C Night 20:16:34-20:50:45.
2015/169 21:50:16-21:50:32 MOD_SRCA_SETUP_10W_L2_CC.2
SRCA setup activity using lamp 2 in constant current feedback mode
2015/169 21:53:16-22:14:46 MOD_OA20_SRCA_10W_RAD_CUR.4
OA-20: SRCA 10W Radiometric Calibration - B Side
Data collection 22:09:13-22:14:46.
S/C Night 21:55:27-22:29:38.
Friday, June 19, 2015
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None
This Week's Scheduled MODIS Activities Not Completed:
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None
This Month's Upcoming MODIS Events:
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June's routine activities include a SDSM_Screened on 2015/166, a Nighttime_Daymode on 2015/163, a SRCA_Radiometric on 2015/166 and a Lunar Roll on 2015/178.
Non-routine activities include a Lunar Roll on 2015/178, and 2 10W_SRCA_Radiometric calibrations on 2015/169
Maneuvers:
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Aqua MLC #128 will take place on on 2015/178.
Aqua DMU #97 took place on 2015/142.
Aqua IAM #47 took place on 2015/112.
MODIS Anomalies:
Over the last three Aqua SRCA radiometric mode calibrations (on 2015/110 and 2015/138), we have seen an increase (10-20%) in the measured dn response during the 20W calibration. The lamp voltage during the 20W calibration also shows an increase for the two most recent calibrations, while the current is unchanged. The voltage and current during the 10W calibration are also unchanged. The lamp voltage telemetry point (VR_SR_LAMPS) is measured across all of the lamps. 10W Lamp#1 and #4 are used for the 20W calibration and Lamp #1 is used for the 10W calibration. Also, recent dn trending from the 10W and 1W calibration are showing a noticeable, but not unprecedented, drop for the last two calibrations. This week a 10W radiometric calibration was run using Lamp 4. Lamp 4 is typically used in conjunction with Lamp 1 during the 20W calibration. As expected, the voltage across the lamps was higher during the Lamp 4 10W calibration than typically occurs during the Lamp 1 10W calibration. The dn-level and signal seen by the photodiode were lower for both the Lamp 4 10 W and the Lamp 1+4 20W that was measured on 2015/167. This behavior is not considered anomalous.
General Instrument Comments:
FM1 MODIS is in Science Mode. The SVD and NAD are open, the survival
heaters are enabled, and the Black Body is heated to 285 K.
MODIS Telemetry Trends:
The FM1 MODIS instrument telemetry is trending nominally.
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.
http://jupiter02.gsfc.nasa.gov/
Limited Life Item Status:
SRCA 10W Lamp #1: 344.2 of 500 hours
SRCA 10W Lamp #2: 188.8 of 500 hours
SRCA 10W Lamp #3: 205.7 of 500 hours
SRCA 10W Lamp #4: 129.5 of 500 hours
SRCA 1W Lamp #1: 527.1 of 5000 hours
SRCA 1W Lamp #2: 291.1 of 5000 hours
Solar Diffuser Door: 3228 of 3022 Movements
Nadir Aperture Door: 1053 of 1316 Movements
Space View Door: 632 of 1316 Movements