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am1weekly_2004-108_2004-114

Mission Operations Days: 2004/108 to 2004/114
April 17, 2004 00:00:00 GMT to April 23, 2004 00:00:00 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)
ComponentState(s)Comment
BlackbodyA On (290K); B OffNominal Science Mode
Calibration ElectronicsA On; B OffNominal Science Mode
Control ProcessorA On; B OffNominal Science Mode
Nadir DoorUnlatched, OpenNominal Science Mode
Space View DoorUnlatched, OpenNominal Science Mode
Solar Diffuser DoorUnlatched, ScreenedPermanent Configuration
FDDI FormatterA On; B OffNominal Science Mode
FDDI PortA On; B OffNominal Science Mode
FIFO Memory#1 & #2 On; #3 & #4 OffNominal Science Mode
Format ProcessorA Off; B OnNominal Science Mode
Power Supplies#1 On, #2 OffNominal Science Mode
PV VIS FPAA On; B OffNominal Science Mode
PV NIR FPAA On; B OffNominal Science Mode
PV SMIR FPAA On; B OffNominal Science Mode
PV LWIR FPAA On; B OffNominal Science Mode
PC LWIR FPAA On; B OffNominal Science Mode
RC Outgas HeatersAll 3 (CS, IS, OS) OffNominal Science Mode
RC LWIR FPA HeaterOn (83K)Nominal Science Mode
RC SMIR FPA HeaterOffNominal Science Mode
Scan AssemblyA On; B OffNominal Science Mode
SDSMOffNominal Science Mode
SRCAOffNominal Science Mode
PS1 Survival HeaterEnabledNominal Science Mode
PS2 Survival HeaterEnabledNominal Science Mode
Timing GeneratorA On; B OffNominal Science Mode
Flight SoftwareRev 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 SetnoneNominal Science Mode
TMON 66DisabledNominal Science Mode
TMON 67DisabledNominal Science Mode
TMON 68EnabledNominal Science Mode
TMON 69DisabledNominal Science Mode

This Week’s Completed MODIS Activities:

Saturday, April 17, 2004

2004/108 21:00:00 ATC MOD_SRCA_BACKUP_SETUP Setup activity for SRCA activities using backup lamp #4 for 10W lamp level and 1W lamp #2 for the 1W lamp level.
2004/108 21:08:44-21:43:51 ATC MOD_SPECIAL_10W_10WND_1W SRCA radiometric mode calibration with 10W, 10W + ND filter, and 1W lamp levels. Data collection from 21:09:48-21:42:48

Sunday, April 18, 2004

None

Monday, April 19, 2004

None

Tuesday, April 20, 1994

2004/111 20:34:35-20:43:23 ATC MOD_OA16_SDSM_SCRN_NO_DOOR_A.4 OA16: SD/SDSM screened side A, no door movement.
2004/111 22:22:29-22:25:00 ATC MOD_OA27_PV_ECAL.3

Wednesday, April 21, 2004

2004/112 00:30:00 ATC MOD_SRCA_NOMINAL_SETUP.4 Sets up nominal A Side SRCA lamp configuration
2004/112 00:38:37-01:30:18 ATC MOD_OA22_SRCA_FULL_SPECT_1A.6 OA-22: SRCA Full Spectral Calibration Part 1 - A Side 30W lamp data collection is from 00:54:31-01:30:17 (in S/C night)
2004/112 02:34:22-03:17:12 ATC MOD_OA22_SRCA_FULL_SPECT_2A.5 OA-22: SRCA Full Spectral Calibration Part 2 - A Side 30W lamp data collection is from 02:34:22-03:08:52 (in S/C night)
2004/112 03:50:00 ATC MOD_SRCA_NOMINAL_SETUP.4 Sets up nominal A Side SRCA lamp configuration
2004/112 03:56:24-04:47:42 ATC MOD_OA22_SRCA_FULL_SPECT_3A.6 OA-22: SRCA Full Spectral Calibration Part 3 - A Side 10W lamp data collection is from 04:12:51-04:47:24 (in S/C night)
2004/112 05:47:24-06:32:41 ATC MOD_OA22_SRCA_FULL_SPECT_4A.4 OA-22: SRCA Full Spectral Calibration Part 4 - A Side 10W lamp data collection is from 05:47:24-06:25:24 (in S/C night)

Thursday, April 22, 2004

None

Friday, April 23, 2004

2004/114 02:00:00 ATC MOD_OA26_BB_270K_A.1 Set blackbody temperature to 270K on the A Side
2004/114 20:00:00 ATC MOD_OA26_BB_280K_A.1 Set blackbody temperature to 280K on the A Side

This Week’s Scheduled MODIS Activities Not Completed:

None

Upcoming MODIS Events:

Calibrations for April will include weekly SDSM, monthly SRCA 10W Radiometric, and quarterly Black Body calibrations.

Saturday, April 24, 2004

2004/115 00:00:00 ATC MOD_OA26_BB_285K_A.1 Set blackbody temperature to 285K on the A Side
2004/115 03:00:00 ATC MOD_OA26_BB_290K_A.1 Set blackbody temperature to 290K on the A Side
2004/115 07:00:00 ATC MOD_OA26_BB_315K_A.1 Set blackbody temperature to 315K on the A Side
2004/115 07:00:30 ATC MOD_OA26_BB_DCYCLE_FULL.1 Set blackbody heater duty cycle to FULL
2004/115 10:00:00 ATC MOD_OA26_BB_270K_A.1 Set blackbody temperature to 270K on the A Side
2004/115 10:00:30 ATC MOD_OA26_BB_DCYCLE_THIRD.1 Set blackbody heater duty cycle to THIRD

Sunday, April 25, 2004

2004/116 07:00:00 ATC MOD_OA26_BB_290K_A.1 Set blackbody temperature to 290K on the A Side

Monday, April 26, 2004

2004/117 09:00:00 ATC MOD_SRCA_14_6_4_2_SETUP.3 Setup of non-nominal lamp configuration for SRCA calibration
2004/117 09:13:48-09:34:43 ATC MOD_OA20_SRCA_10W_RAD_A_Base.2 OA-20: SRCA 10W Continuous Radiometric - A Side, Using Lamp #2
Data collection from 09:29:42-09:34:43.
2004/117 14:00:00 ATC MOD_SRCA_14_6_2_2_SETUP.3 Setup of non-nominal lamp configuration for SRCA calibration
2004/117 14:10:26-14:31:21 ATC MOD_OA20_SRCA_10W_RAD_A_Base.2 OA-20: SRCA 10W Continuous Radiometric - A Side, Using Lamp #3
Data collection from14:26:20-14:31:21.

Tuesday, April 27, 2004

2004/118 20:39:51-20:48:39 ATC MOD_OA16_SDSM_SCRN_NO_DOOR_A.4 OA-16: SD/SDSM screened side A, no door movement.
2004/118 21:40:00-21:40:31 ATC MOD_SRCA_NOMINAL_SETUP.4 Setup of nominal lamp configuration for SRCA calibration
2004/118 21:43:42-22:04:36 ATC MOD_OA20_SRCA_10W_RAD_A_Base.2 OA-20: SRCA 10W Continuous Radiometric - A Side, Using Lamp #1
Data Collect (21:59:36-22:04:36) Centered on S/C Night

Maneuvers:

There will be no Lunar Calibration Rolls in April, May, or June for the Terra MODIS. The necessary roll angles are -26.3051, -27.2921, and -22.1398 degrees, respectively; all of which are beyond the -20.0 degree limit.

MODIS Anomalies:

MODIS NAD (Nadir Aperture Door) Anomaly:

Telemetry still indicates that the “NAD Open” (MOD_CR_DR_NAD_OPEN) trigger is set to the “NOT_OPEN” position; however, science data has shown that the NAD is open. The NAD OPEN trigger may yet “pop” to OPEN due to thermal cycling on the trigger, as was seen on 2002/079.

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:

Terra Solid State Recorder Anomaly

Overview:

The SSR Anomaly is still under investigation. MODIS currently is operating with 34 Supersets allotted for its buffer. There are plans in the works for possibly power cycling the SSR to get back PWA’s that are in the Bad List, but no date has yet been set. There are no current plans for a change in science data capture rates. For details, see previous reports.

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/links/links.htm

Limited Life Item Status:

SRCA 10W Lamp #1: 229.9 of 500 hours
SRCA 10W Lamp #2: 167.4 of 500 hours
SRCA 10W Lamp #3: 176.6 of 500 hours
SRCA 10W Lamp #4: 62.6 of 500 hours

SRCA 1W Lamp #1: 565.9 of 4000 hours
SRCA 1W Lamp #2: 276.9 of 4000 hours

Solar Diffuser Door: 2146 of 3022 Movements
Nadir Aperture Door: 538 of 1316 Movements
Space View Door: 441 of 1316 Movements