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am1weekly_2016-072_2016-078

MODIS IOT Terra Weekly Report
Mission Operations Days: 2016/072 through 2016/078
March 12, 2016 00:00:00 GMT to March 18, 2016 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 (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
  • 10W Lamps - 1, 4 (functional)
  • 10W Lamps - 2, 3 (non-functional)
  • 1W Lamps - 1, 2 (functional)
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
  • CP07 to Survival Mode - No SDD to closed command (1 patch)
  • CP07 to Safe Mode - No FR OFF Command (1 patch)
  • CP07 to Safe Mode - No SDD to closed command (1 patch)
  • CP07 to Science Mode - Turn on FRB instead of FRA (1 patch)
  • CP07 to Outgas and Science Mode - Turn on FRB instead of FRA (1 patch)
  • FR Error Counting and Statistics (2 patches)
  • FR 1000ms time code patches (3 patches)
  • FR Band 5 Gain Change (20 commands)
  • FR BB Ideal Output Values (1 patch)
  • FR A EEPROM KME Fast 1 word patch (1 patch)
  • FR B EEPROM KME Fast 1 word patch (1 patch)
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 12, 2016
---
None

Sunday, March 13, 2016
---
Nighttime Day Mode Observations

2016/073 21:19:39            ATC MOD_OA04_NIGHT_RATE.1      (10:00 early)
2016/073 21:40:00            ATC MOD_OA03_DAY_RATE.2
2016/073 22:00:00            ATC MOD_OA04_NIGHT_RATE.1
2016/073 22:28:57            ATC MOD_OA03_DAY_RATE.2          (10:00 late) 

Monday, March 14, 2016
---
None

Tuesday, March 15, 2016
---
None

Wednesday, March 16, 2016
---
None

Thursday, March 17, 2016
---
None

Friday, March 18, 2016
---
None

This Week's Scheduled MODIS Activities Not Completed:
---
None

This Month's Upcoming MODIS Events:
---
March's routine activities include a PV_Ecal on 2016/079, a SDSM_Screened on 2016/061 & 2016/062 & 2016/082, a SRCA_Radiometric on 2016/081, and a Lunar Roll on 2016/088 and a Blackbody_Cycle on 2016/062-065.

Non-routine activities include a Lunar Roll on 2016/088, IAM #44 on 2016/063, and IAM #45 2016/071

Saturday, March 19, 2016
---
2016/079 21:41:02-21:43:33 ATC MOD_OA27_PV_ECAL.3
OA-27: Photovoltaic bands electronics calibration.
Centered on S/C maximum latitude.

Monday, March 21, 2016
---
2016/081 20:37:50-20:38:19 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

2016/081 20:40:50-21:12:15 ATC MOD_OA19_SRCA_FULL_RAD.1
OA-19: SRCA Full Radiometric Calibration.

Tuesday, March 22, 2016
---
2016/082 20:25:01-20:33:49  ATC MOD_OA16_SDSM_SCRN_NO_DOOR_A.4
OA-16: SD/SDSM screened side A, no door movement.

Maneuvers:
---
Terra Lunar Roll will take place on 2016/088.
Terra DMU #95 took place on 2015/351.
Terra IAM #45 took place on 2016/071.

MODIS Anomalies:
---
Standby and Safe Transition

When running the procs to transition from Safe to Standby, and from Standby to Science, the real-time log would read out that the transition had failed although upon verifying that all major expected telemetry points had changed to their expected state, it was determined that the transitions were both successful. On the transition to Standby Mode from Safe Mode, the transition "failed" because it was looking for the telemetry point MOD_CR_RC_CFPA_T3SET to say "NOT", when it actually read "NOT SELECTED". After looking into it, the point MOD_CR_RC_CFPA_T3SET can only read "NOT SELECTED" or "SELECTED". There is an error in the proc MOD_STBY_TXTN('A') and it should be changed to check for "NOT SELECTED" as opposed to "NOT". When transitioning to Science Mode from Standby Mode, the transition "failed" as well. The real-time log did not explicitly state what had caused it to fail like the Standby transition proc had. We would hypothesize that it is either do to the same telemetry point, MOD_CR_RC_CFPA_T3SE, or because of the software patch that keeps the B-side formatter on instead of the A-side formatter. More investigation is necessary.

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:

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.

https://wapub32.eos.nasa.gov/

Limited Life Item Status:

SRCA 10W Lamp #1: 359.4 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: 130.9 of 500 hours

SRCA 1W Lamp   #1: 587.6 of 4000 hours
SRCA 1W Lamp   #2: 304.6 of 4000 hours

Solar Diffuser Door:    2148 of 3022 Movements
Nadir Aperture Door:    542 of 1316 Movements
Space View Door:        445 of 1316 Movements