| Date |
Time |
Component |
Description |
|
| 10/11/2017 | 16:23:16 | SSA | Enable use of Sun Sensor Update; Return to nominal configuration |
|
| 09/28/2017 | 13:56:57 | SSA | Disable use of Sun Sensor Update |
|
| 04/14/2016 | 16:11:36 | SSA | Adjust Sun Sensor Calibration to correct for a +0.08 deg error in Yaw. |
|
| 12/08/2015 | 16:01:39 | MIMU-1 | Configure the spacecraft for Estimated Roll and Pitch (ESTYZ)NON-CONTROL SCP |
|
| 12/08/2015 | 14:20:53 | MIMU-1 | Configure the spacecraft for Estimated Roll and Pitch (ESTYZ)CONTROL SCP |
|
| 07/16/2015 | 13:21:58 | MIMU-1 | Restore CPUA Telemetry Data |
|
| 07/16/2015 | 11:45:48 | MIMU-1 | To gather MIMU raw data at a 10 Hz rate by overwriting all CPUA telemetry data |
|
| 01/13/2015 | 14:59:51 | MIMU-1 | Attitude mode set to GYE. |
|
| 04/08/2014 | 14:19:41 | ESA | Load new ESA quadrant 1 coefficients to non-control SCP. |
|
| 04/02/2014 | 13:50:17 | ESA | Load new ESA quadrant 1 coefficients to control SCP. |
|
| 03/07/2014 | 17:46:19 | MIMU-1 | MIMU1 Z Gryo Failed. No impact to spacecraft attitude since failure. |
|
| 10/08/2013 | 14:45:41 | | Disable thruster firing |
|
| 09/16/2013 | 13:48:21 | ESA | Disable the use of ESA quadrant 1 for 14 orbits. |
|
| 08/27/2013 | 17:31:00 | ESA | Clear ESA Ground Quadrant Use Word to 0000 |
|
| 08/27/2013 | 14:10:32 | ESA | Set ESA Ground Quadrant Use Word to 0001 |
|
| 08/10/2012 | 17:32:21 | | Enable Thruster Firing |
|
| 08/10/2012 | 17:30:49 | | Put ADACS back to Nominal mode |
|
| 08/10/2012 | 10:48:30 | | Exiting RGYRO ESTX mode |
|
| 08/08/2012 | 16:14:30 | | Going into RGYRO ESTX mode to test new ESA coefficients for sun/moon intuitions on the ESA quad detectors. |
|
| 08/08/2012 | 16:13:54 | | Disable thruster firing |
|
| 02/23/2012 | 21:26:42 | | Enable thruster firing |
|
| 02/23/2012 | 21:25:27 | | Put ADACS back to Nominal mode |
|
| 02/23/2012 | 17:53:56 | MIMU-1 | End MIMU1 GYE test |
|
| 02/21/2012 | 18:17:09 | MIMU-1 | Start MIMU1 GYE Test |
|
| 02/21/2012 | 15:13:38 | MIMU-1 | Start MIMU1 ESTX test |
|
| 02/21/2012 | 13:26:42 | | Disable thruster firing |
|
| 10/19/2011 | 20:54:50 | | Enable thruster firing |
|
| 10/19/2011 | 20:53:42 | | Put ADACS back to nominal mode |
|
| 10/19/2011 | 17:37:12 | | End ESTX MIMU2 test |
|
| 10/19/2011 | 12:42:01 | | Start ESTX MIMU2 test |
|
| 10/19/2011 | 12:34:09 | | Disable thruster firing |
|
| 09/21/2011 | 15:57:31 | | Enable thruster firing |
|
| 09/21/2011 | 15:56:10 | | Put ADACS back to nominal mode |
|
| 09/21/2011 | 12:35:42 | | End ESTX MIMU1 test |
|
| 09/20/2011 | 12:47:15 | | Start ESTX MIMU1 test |
|
| 09/20/2011 | 12:45:29 | | Disable thruster firing |
|
| 04/17/2011 | 18:45:09 | | Enables GN2 Thrusters and Auto Thruster Firing Software |
|
| 04/17/2011 | 18:44:06 | | Clears ADACS Yaw Update Limit and Forced YGC flags, and then commands the ADACS to Nominal mode |
|
| 04/17/2011 | 15:41:35 | | End RGYRO mode test - ESTX |
|
| 04/16/2011 | 12:34:08 | | Setup to start RGYRO mode test - ESTX |
|
| 08/17/2010 | 20:31:00 | MIMU-2 | MIMU 2 OFF - end of Test 2 - Gyroless mode using MIMU2 |
|
| 08/17/2010 | 20:31:00 | MIMU-1 | MIMU 1 ON for end of Test 2 - Gyroless mode using MIMU2 |
|
| 08/17/2010 | 20:31:00 | | End Test 2 - Gyroless mode using MIMU2 |
|
| 08/17/2010 | 20:20:07 | | Begin Test 2 - Gyroless mode using MIMU2 |
|
| 08/17/2010 | 20:20:07 | MIMU-1 | MIMU 1 OFF for Test 2 - Gyroless mode using MIMU2. |
|
| 08/17/2010 | 20:20:07 | MIMU-2 | MIMU2 ON for Test 2 - Gyroless mode using MIMU2 |
|
| 08/11/2010 | 13:09:43 | | End Test 1 Gyroless mode using MIMU1. |
|
| 08/10/2010 | 11:41:16 | | Began Test 1 Gyroless mode using MIMU1. |
|
| 10/06/2009 | 17:15:00 | | Extract MIMU LIM data to CPUTLM7 for Control OBP |
|
| 10/06/2009 | 15:51:00 | | Extract MIMU LIM data to CPUTLM7 for Non-Control OBP |
|
| 06/16/2009 | 18:26:54 | | Disable CPU Switching due to MIMU Failure, control-CPU |
|
| 06/16/2009 | 18:26:26 | | Disable CPU Switching due to MIMU Failure, non-control CPU |
|
| 06/15/2009 | 18:37:55 | | Increase pitch RWA bias from 1600 RPM to 2500 RPM, control CPU (Critical CMD) |
|
| 06/15/2009 | 18:37:11 | | Increase pitch RWA bias from 1600 RPM to 2500 RPM, non-control CPU (Critical CMD) |
|
| 06/11/2009 | 17:40:28 | | Clear MIMU Switch due to Go/NoGo for non-control CPU |
|
| 06/11/2009 | 17:39:57 | | Clear MIMU Switch due to Go/NoGo for control CPU |
|
| 06/11/2009 | 17:39:24 | | Clear the SUBCYCER error counter |
|
| 06/11/2009 | 17:38:53 | | Bias the pitch wheel to 1600RPM (Critical CMD) |
|
| 06/11/2009 | 17:38:13 | | Change gas unloading threshold for pitch axis momentum from 45 in/lbs/sec (2Dhex) to 145 in/lbs/sec (91hex), control CPU |
|
| 06/11/2009 | 17:37:47 | | Change gas unloading threshold for pitch axis momentum from 45 in/lbs/sec (2Dhex) to 145 in/lbs/sec (91hex), non-control CPU |
|
| 06/10/2009 | 12:00:00 | MIMU-2 | NOAA-18 MIMU2 failure |
|
| 06/09/2009 | 16:37:51 | | Clear the X-Axis Thruster counters |
|
| 06/09/2009 | 16:37:22 | | Z-Axis Thruster (NACTZ) |
|
| 06/09/2009 | 16:37:07 | | Clear the X-Axis Thruster counters |
|
| 06/09/2009 | 16:36:50 | | X-Axis Thruster (NACTX) |
|
| 06/09/2009 | 16:36:31 | | Monitors thrurster activity |
|
| 06/09/2009 | 16:33:42 | | Clears ADACS Yaw Update Limit and Forced YGC flags, and then commands the ADACS to Nominal mode |
|
| 06/08/2009 | 21:42:00 | | Force YGC |
|
| 06/08/2009 | 21:42:00 | | Enable Coil Switching |
|
| 06/08/2009 | 21:42:00 | RYTC 1B | Swap back to primary coil |
|
| 06/07/2009 | 19:48:00 | RYTC 1B | Swapped RY Coil due to MIMU Swap |
|
| 06/07/2009 | 18:47:14 | MIMU-2 | At 18:47:22z on 7 June 2009 (JD158), S/C tripped into YGC following an unexpected attitude disturbance. |
|
| 12/09/2008 | 18:08:42 | | Enables Auto Thruster Firings for both CPUs |
|
| 12/09/2008 | 18:07:30 | | Change gas unloading threshold for pitch axis momentum from 40 in/lbs/sec (28hex) to 45 in/lbs/sec for both CPUs (2Dhex) |
|
| 11/13/2008 | 17:38:00 | | Disable yaw, roll, pitch reasonableness tests in control and non-control SCP. |
|
| 08/19/2008 | 12:33:00 | | Disables gas and automatic thruster firing. |
|
| 08/18/2008 | 18:15:00 | | 4 miscompares, ARRTLM Val=1 AMIMSWIN Val=1 AMIMUON1 Val=1 AMIMUON2 Val=0. A thruster unload was executed by the spacecraft. Additional control logic enabled in case of a close approach with debris from the Chineses Sat. Onboard s/w initated the thruster pulse (+ pitch) when the momentum threshold was exceeded. During the + pitch thruster firing the ROLL reasonableness test failed on the NON control side, which caused the MIMU to switch from MIMU 2 to MIMU 1, and set MIMU switching to INHIBIT. |
|
| 08/18/2008 | 09:30:00 | | Enables Auto Thruster Firings |
|
| 01/25/2006 | 12:00:00 | PTC 1A | Pitch torquer coil inactive while spacecraft Z-momentum (pitch) transitions from a positive value range to a negative value range (while Z-Rwheel does the exactly the opposite). Considered rare but not anomalous. |
|
| 11/03/2005 | 12:00:00 | PTC 1A | Pitch torquer coil inactive while spacecraft Z-momentum (pitch) transitions from a negative value range to a positive value range (while Z-Rwheel does the exactly the opposite). Considered rare but not anomalous. Transition complete on 18 Nov 05. |
|
| 05/27/2005 | 18:50:00 | | End reduced gyro test. COmmand ADACS back to nominal mode using all gyro axis’. |
|
| 05/27/2005 | 17:07:00 | | Reduced gyro test, estimate pitch. Knockout out pitch gyro for 1 rev. |
|
| 05/25/2005 | 14:20:00 | | New ephemeris loaded to control OBP. |
|
| 05/23/2005 | 13:00:00 | | Attitude control commanded to NOMINAL mode (from YGC). |
|
| 05/22/2005 | 19:45:00 | | Subtracted 3 full seconds from command clock because of drift. |
|
| 05/22/2005 | 19:40:00 | | First on-orbit ephemeris upload to N18 spacecraft, nominal execution. |
|
| 05/21/2005 | 12:20:00 | ESA | ESA to nominal algorythm. Spacecraft remains in YGC attitude control mode. |
|
| 05/20/2005 | 21:55:00 | PTC 1B | on orbit, in use |
|
| 05/20/2005 | 21:55:00 | PTC 2A | on orbit, standby mode |
|
| 05/20/2005 | 21:55:00 | PTC 2B | on orbit, standby mode |
|
| 05/20/2005 | 21:55:00 | PTC 1A | on orbit, in use |
|
| 05/20/2005 | 21:50:00 | RYTC 1A | on orbit, in use |
|
| 05/20/2005 | 21:50:00 | RYTC 1B | on orbit, in use |
|
| 05/20/2005 | 15:00:00 | | Spacecraft attitude control in YGC mode |
|
| 05/20/2005 | 11:52:00 | RWA Z | on orbit, in use |
|
| 05/20/2005 | 11:51:00 | RWA Y | on orbit, in use |
|
| 05/20/2005 | 11:51:00 | MIMU-2 | on orbit |
|
| 05/20/2005 | 11:50:00 | RWA X | on orbit, in use |
|
| 05/20/2005 | 11:50:00 | SSA | on orbit |
|
| 05/20/2005 | 11:50:00 | MIMU-1 | on orbit |
|
| 05/20/2005 | 11:50:00 | RWA S | on orbit, standby mode |
|
| 05/20/2005 | 11:50:00 | RYTC 2A | on orbit, standby mode |
|
| 05/20/2005 | 11:50:00 | RYTC 2B | on orbit, standby mode |
|
| 09/24/1988 | 10:36:00 | IMU | On Orbit |
