Date |
Time |
Component |
Description |
|
09/28/2006 | 17:01:00 | | Major spacecraft attitude perturbation resulted in autonomous battery undervoltage safing macro implementation turning off AVHRR (scan motor remained on). |
|
08/14/2006 | 15:25:00 | CHANNEL 3 | Turned AVHRR channels 3,4,5 back ON. |
|
08/10/2006 | 17:55:00 | CHANNEL 3 | AVHRR IR channels 3, 4 and 5 all commanded off for safing reasons due to high patch temperatures observed during the pitch over maneuver. |
|
08/10/2006 | 17:55:00 | CHANNEL 4 | AVHRR IR channels 3, 4 and 5 all commanded off for safing reasons due to high patch temperatures observed during the pitch over maneuver. |
|
08/10/2006 | 17:55:00 | CHANNEL 5 | AVHRR IR channels 3, 4 and 5 all commanded off for safing reasons due to high patch temperatures observed during the pitch over maneuver. |
|
12/20/2005 | 16:00:00 | SCAN MOTOR | Scan motor nominal for 10 days straight. Imagery clean. Scan motor component and AVHRR subsystem both upgraded to YELLOW. |
|
12/09/2005 | | SCAN MOTOR | AVHRR scan motor returned to nominal operating range with no bar code imagery. MIRP continues to be rephased once per orbit over the South Pole. |
|
09/29/2005 | 16:00:00 | SCAN MOTOR | N14 AVHRR downgraded to RED status because of elevated scan motor current and persistent bar coded imagery. |
|
09/27/2005 | 01:00:00 | SCAN MOTOR | N14 AVHRR scan motor current surged to 280 mAmps (from 150 mA) which WAS accompanied by a concurrent scan motor temp surge. Scan motor current remained elevated this time but appeared to be slowly trending lower (into a more nominal values). Imagery bar codes persist. |
|
09/24/2005 | 11:20:07 | SCAN MOTOR | N14 AVHRR scan motor current surged to 280 mAmps (from 140 mA) before returning to more nominal values 32 minutes later. Current surge was NOT acompanied by scan motor temp surge. Imagery bar codes started at that time and have continued to be observed as of 26 Sept at 02:00z. |
|
07/21/2005 | 12:00:00 | SCAN MOTOR | N14 AVHRR scan motor and imagery nominal for the past 5 days. Status upgraded to YELLOW |
|
07/16/2005 | 14:30:00 | SCAN MOTOR | N14 AVHRR returned to nominal scan motor current and temp. Synch delta also returned to nominal. |
|
04/14/2004 | 18:36:00 | SCAN MOTOR | Toggle AVHRR scan motor OFF then back on 30 seconds later for testing purposes. After turning back on motor current went to pegged levels. |
|
05/01/2003 | | SCAN MOTOR | AVHRR scan motor current is consistently high (for over 1 week) and still increasing while image data is consistently degraded. Status downgraded to RED. |
|
03/25/2003 | 12:00:00 | SCAN MOTOR | AVHRR scan motor no longer showing a problem - status upgraded to yellow. |
|
01/06/2003 | | SCAN MOTOR | AVHRR status downgraded back to Red, data quality poor, motor current high |
|
12/26/2002 | | SCAN MOTOR | AVHRR Scan Motor Current improved, image quality does not reflect improvement |
|
07/25/2002 | 01:00:00 | SCAN MOTOR | AVHRR scan motor deteriorating further, data quality poor |
|
06/23/2002 | 21:05:00 | SCAN MOTOR | AVHRR Scan Motor Current runup. |
|
05/30/2002 | 22:00:00 | SCAN MOTOR | AVHRR scan motor current surge |
|
01/18/2002 | 01:00:00 | SCAN MOTOR | AVHRR self corrected. Image quality nominal, currents nearly nominal |
|
11/24/2001 | 16:24:00 | SCAN MOTOR | AVHRR Scan motor maximum current of 306 ma. Black Body 3,4,5 temperatures became anomalous. |
|
10/18/2001 | 19:55:00 | SCAN MOTOR | AVHRR high motor currents and synch deltas |
|
10/07/1997 | | SCAN MOTOR | Small increases in the AVHRR scan motor current and synch-delta were observed. |
|
12/30/1994 | 10:36:00 | PSU | On Orbit |
|
12/30/1994 | 10:36:00 | SCAN MOTOR | On Orbit |
|
12/30/1994 | 10:36:00 | ELECTRONICS | On Orbit |
|
12/30/1994 | 10:36:00 | RADIANT COOLER | On Orbit |
|
12/30/1994 | 10:36:00 | OPTICS | On Orbit |
|
12/30/1994 | 10:36:00 | BASEPLATE | On Orbit |
|
12/30/1994 | 10:36:00 | CHANNEL 1 | On Orbit |
|
12/30/1994 | 10:36:00 | CHANNEL 2 | On Orbit |
|
12/30/1994 | 10:36:00 | CHANNEL 3 | On Orbit |
|
12/30/1994 | 10:36:00 | CHANNEL 4 | On Orbit |
|
12/30/1994 | 10:36:00 | CHANNEL 5 | On Orbit |
|
| | | Toggle MIRP/AVHRR Rephase Enabled then Disabled. |
|
| | | Toggle MIRP/AVHRR Rephase Enabled the Disabled |