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am1weekly_2000-141_2000-147

Mission Operations Days: 2000/141 to 2000/147
May 20, 2000 00:00:00 GMT to May 26, 2000 00:00:00 GMT


Terra Spacecraft and MODIS Instrument Status:

Terra (AM-1) is in Normal Ops Mode
MODIS is in Science Mode - A Side
MODIS has no known Anomalies
ComponentState(s)Comment
BlackbodyA On (290 K); B OffNominal
Calibration ElectronicsA On; B OffNominal
Control ProcessorA On; B OffNominal
Nadir DoorUnlatched, OpenNominal
Space View DoorUnlatched, OpenNominal
Solar Diffuser DoorUnlatched, ClosedNominal
FDDI FormatterA On; B OffNominal
FDDI PortA On; B OffNominal
FIFO Memory#1 & #2 On; #3 & #4 OffNominal
Format ProcessorA On; B OffNominal
Power Supplies#1 On, #2 OffNominal
PV VIS FPAA On; B OffNominal
PV NIR FPAA On; B OffNominal
PV SMIR FPAA On; B OffNominal
PV LWIR FPAA On; B OffNominal
PC LWIR FPAA On; B OffNominal
RC Outgas HeatersAll Off (CS, IS, OS)Nominal
RC LWIR FPA HeaterOn (83 K)Nominal
RC SMIR FPA HeaterOffNominal
Scan AssemblyA On; B OffNominal
SDSMA Off; B OffNominal
SRCAA Off; B OffNominal
PS1 Survival HeaterEnabledNominal
PS2 Survival HeaterEnabledNominal
Timing GeneratorA On; B OffNominal
Flight SoftwareRev BD + 1 set of patches
  • FR Band 14H Gain Change (10 commands)
Nominal
Inhibit Ids SetNoneNominal
TMONs Enabled66, 67Nominal

This Week’s Completed MODIS Activities:

Saturday, May 20, 2000

None

Sunday, May 21, 2000

None

Monday, May 22, 2000

2000/143 20:02:00 ATC - Blackbody to 270K

Tuesday, May 23, 2000

2000/144 14:00:00 ATC Blackbody to 315K
2000/144 14:05:00 Real-time Set Blackbody duty cycle to 100%
2000/144 18:21:20 Set EDS Flag per request from Kaufman
2000/144 18:25:30 Clear EDS Flag per request from Kaufman
2000/144 21:00:00 ATC Blackbody to 270K
2000/144 21:30:00 Real-time Set Blackbody duty cycle to 33%

Wednesday, May 24, 2000

2000/145 08:41:38 ATC OA16 SD/SDSM Open
2000/145 10:20:31 ATC OA16 SD/SDSM Screened
2000/145 19:00:00 ATC Blackbody to 290K

Thursday, May 25, 2000

None

Friday, May 26, 2000

2000/147 10:08:04 ATC OA16 SD/SDSM Screened

This Week's Scheduled MODIS Activities Not Completed:

None

Upcoming MODIS Events:

Saturday, May 27, 2000

None

Sunday, May 28, 2000

None

Monday, May 29, 2000

2000/150 20:02:00 ATC - Blackbody to 270K

Tuesday, May 30, 2000

2000/151 14:00:00 ATC Blackbody to 315K
2000/151 14:05:00 Real-time Set Blackbody duty cycle to 100%
2000/151 21:00:00 ATC Blackbody to 270K
2000/151 21:00:00 Real-time Set Blackbody duty cycle to 33%

Wednesday, May 31, 2000

2000/152 ?? ATC OA16 SD/SDSM Open
2000/152 ?? ATC OA16 SD/SDSM Screened
2000/152 17:12:40 ATC OA03 – Formatter Day Mode (Normal Operation)
2000/152 18:02:04 ATC OA04 – Formatter Night Mode (REMOVED)
MODIS will remain in Day Mode during this Night Time Ground Track.
This Ground Track covers the Indian Ocean and Asian Continent.
2000/152 18:51:32 ATC OA03 – Formatter Day Mode (REMOVED)
This command is unnecessary, MODIS will already be in Day Mode.
2000/152 19:00:00 ATC Blackbody to 290K
2000/152 19:40:57 ATC OA04 – Formatter Night Mode (Normal Operation)

Thursday, June 1, 2000

None

Friday, June 2, 2000

2000/154 ?? ATC OA16 SD/SDSM Screened

Maneuvers:

Tue, June 20, 2000 – Drag Makeup Maneuver
Wed, June 21, 2000 – MODIS Roll #1 (2000/173/21:50:10 – 21:56:40), roll degree = -18.0044
Wed, June 21, 2000 – MODIS Roll #2 (2000/173/23:28:43 – 23:35:13), roll degree = -17.4518
Wed, June 21, 2000 – MODIS Roll #3 (2000/174/01:07:16 – 01:13:46), roll degree = -16.9070

MODIS Anomalies:

None.

General Instrument Comments:

MODIS is in Science Mode on the A-side with the SVD and NAD open.

The upcoming Day 152 Day Rate collection during a Night Time Ground Track will exceed the normal MODIS SSR allocation. Members of the FOT, EDOS, and the DAAC have assisted with the planning of additional TDRSS Science Data Playbacks to prevent the overflow of the MODIS Buffer. The resources necessary for these additional playbacks have been scheduled. Baring a failed or delayed playback, there should be no reason for any science data loss during this period of high volume MODIS data.

MODIS Telemetry Trends:

Telemetry is nominal.

Non-MODIS Significant Events:

None.

Limited Life Item Status:

SRCA 10W Lamp #1: 163.9 of 500 hours
SRCA 10W Lamp #2: 131.0 of 500 hours
SRCA 10W Lamp #3: 140.2 of 500 hours
SRCA 10W Lamp #4: 61.5 of 500 hours

SRCA 1W Lamp #1: 554.3 of 4000 hours
SRCA 1W Lamp #2: 276.3 of 4000 hours

Solar Diffuser Door: 1351 of 3022 Movements
Nadir Aperture Door: 532 of 1316 Movements
Space View Door: 437 of 1316 Movements