MODIS IOT Terra Weekly Report

Mission Operations Days: 2000/204 to 2000/210
July 21, 2000 20:00:00 GMT to July 28, 2000 20:00:00 GMT

Terra Spacecraft and MODIS Instrument Status:

This Week’s Completed MODIS Activities:

MODIS Lunar View Sequence #1 (no roll)
2000/204 14:16:13 ATC Load - Set Formatter to Night Rate 00:03:15 early (for 50/50 SSR buffer)
2000/204 14:27:10 ATC Load - Set Formatter to Day Rate (for Lunar Roll)
2000/204 14:27:12 ATC Load - Set SCIABNORM Flag to ABNORM
2000/204 14:27:14 ATC Load - PC DC Restore OFF
2000/204 14:27:16 ATC Load - PV DC Restore OFF
2000/204 14:27:18 ATC Load - Sector Rotation to -3072 (EA to SV and OBCs)
2000/204 14:33:48 ATC Load - Sector Rotation to 0 (Normal)
2000/204 14:33:50 ATC Load - PC DC Restore ON
2000/204 14:33:52 ATC Load - PV DC Restore ON
2000/204 14:33:54 ATC Load - Set SCIABNORM Flag to NORM
2000/204 14:33:56 ATC Load - Set Formatter to Night Rate (for Lunar Roll)
2000/204 15:12:11 ATC Load - Set Formatter to Day Rate 00:03:15 late (for 50/50 SSR buffer)

MODIS Lunar View Sequence #2 (no roll)
2000/204 15:55:07 ATC Load - Set Formatter to Night Rate 00:03:15 early (for 50/50 SSR buffer)
2000/204 16:05:02 ATC Load - Set Formatter to Day Rate (for Lunar Roll)
2000/204 16:05:04 ATC Load - Set SCIABNORM Flag to ABNORM
2000/204 16:05:06 ATC Load - PC DC Restore OFF
2000/204 16:05:08 ATC Load - PV DC Restore OFF
2000/204 16:05:10 ATC Load - Sector Rotation to -3072 (EA to SV and OBCs)
2000/204 16:11:40 ATC Load - Sector Rotation to 0 (Normal)
2000/204 16:11:42 ATC Load - PC DC Restore ON
2000/204 16:11:44 ATC Load - PV DC Restore ON
2000/204 16:11:46 ATC Load - Set SCIABNORM Flag to NORM
2000/204 16:11:48 ATC Load - Set Formatter to Night Rate (for Lunar Roll)
2000/204 16:51:05 ATC Load - Set Formatter to Day Rate 00:03:15 late (for 50/50 SSR buffer)

None

2000/206 20:02:00 ATC - Blackbody to 270K

2000/207 14:00:00 ATC Blackbody to 315K
2000/207 14:00 Real-time Set Blackbody duty cycle to 100%
2000/207 21:00:00 ATC Blackbody to 270K
2000/207 21:00 Real-time Set Blackbody duty cycle to 33%

2000/208 19:00:00 ATC Blackbody to 290K
2000/208 21:09:05 ATC OA15 - SD/SDSM Open
2000/208 22:47:58 ATC OA16 - SD/SDSM Screened

None

None

This Week's Scheduled MODIS Activities Not Completed:

None

Upcoming MODIS Events:

None

None

2000/213 00:16:47 ATC – PV Ecal
2000/213 00:20:47 ATC – PC Ecal
2000/213 12:26:06 – 12:59:39 ATC - OA19 SRCA Full Radiometric
2000/213 12:00:00 ATC - Blackbody to 270K

2000/214 06:00:00 ATC Blackbody to 280K
2000/214 10:00:00 ATC Blackbody to 285K
2000/214 12:00:00 ATC Blackbody to 290K
2000/214 14:00:00 ATC Blackbody to 295K
2000/214 14:00:30 ATC Set Blackbody duty cycle to 100%
2000/214 16:00:00 ATC Blackbody to 300K
2000/214 18:00:00 ATC Blackbody to 315K
2000/214 20:05:00 ATC Blackbody to 270K
2000/214 20:05:30 ATC Set Blackbody duty cycle to 33%

2000/215 12:13:43 – 13:11:14 ATC – OA23 SRCA Full Spatial
2000/215 19:00:00 ATC Blackbody to 290K
2000/215 ?? ATC OA15 - SD/SDSM Open
2000/215 ?? ATC OA16 - SD/SDSM Screened

2000/216 07:57:25 – 08:49:04 ATC – OA22 SRCA Full Spectral, 30W part I
2000/216 09:52:13 – 10:26:58 ATC – OA22 SRCA Full Spectral, 30W part II
2000/216 11:14:41 – 12:05:57 ATC – OA22 SRCA Full Spectral, 10W part I
2000/216 13:10:00 –14:01:16 ATC – OA22 SRCA Full Spectral, 10W part II
2000/216 20:00:?? Real-time – Set focal plane temp to 85
2000/216 20:02:00 ATC Blackbody to 270K

2000/217 17:00:00 ATC Blackbody to 315K
2000/217 17:00:30 ATC Blackbody duty cycle to 100%

2000/218 00:00:00 ATC Blackbody to 270K
2000/218 00:00:30 ATC Blackbody duty cycle to 33%
2000/218 22:00:00 ATC Blackbody to 315K
2000/218 22:00:30 ATC Blackbody duty cycle to 100%

2000/219 05:00:00 ATC Blackbody to 270K
2000/219 05:00:30 ATC Blackbody duty cycle to 33%

2000/220 03:00:00 ATC Blackbody to 290K

Maneuvers:

Wednesday, August 2, 2000 - Drag makeup maneuver (215/19:30:00)

MODIS Anomalies:

The Radiative Cooler has negative margin, therefore the cold focal planes are no longer under thermal control. This affects bands 5, 6, 7, and 20-36. Analysis is underway.

General Instrument Comments:

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

MODIS Telemetry Trends:

See MODIS Anomalies section.

Non-MODIS Significant Events:

Wednesday, July 19 (Day 201) the EOS Operations Center switched to the upgraded on-line operations software build, Rev C. They will also upgraded to Project Database (PDB) 28. The switchover went well and the MODIS IOT is comfortable with the upgrades.

Data processing by EDOS is currently running at a "degraded level". For a detailed summary of the events that have affected their products, view the EOS System Status web page (http://jupiter02.gsfc.nasa.gov:591/sysstat/) and select the EDOS summary link at the top of the page. A key item to note is from day 6/27/2000 at 12:11:19 PM: " The second major issue is the amount of data that EDOS is receiving since ASTER has been fully turned on." With the new, higher data output of ASTER, even less "spare" time will be available to EDOS for the processing of backlogged or reprocessing of data.

Limited Life Item Status:

SRCA 10W Lamp #1: 170.4 of 500 hours
SRCA 10W Lamp #2: 134.3 of 500 hours
SRCA 10W Lamp #3: 143.5 of 500 hours
SRCA 10W Lamp #4: 61.5 of 500 hours

SRCA 1W Lamp #1: 555.6 of 4000 hours
SRCA 1W Lamp #2: 276.3 of 4000 hours

Solar Diffuser Door: 1387 of 3022 Movements
Nadir Aperture Door: 532 of 1316 Movements
Space View Door: 437 of 1316 Movements

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Email the MCST Helpdesk to ask a question about Level 1B usage, algorithms or software.

Last Update: Tuesday, 14-Jan-2003 13:29:04 EST