Mission Operations Overview 2002 - 2012

Table listing the events affecting the GOMOS mission lifetime: 01 March 2002 - 08 April 2012
2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012

 

Year Start time Stop time Orbits Planned Description
2002 01/03/2002 01/03/2002 1 YES ENVISAT Launch from Kourou, French Guiana
2002 08/03/2002 14/03/2002 - YES GOMOS Instrument Control Unit (ICU) on, to standby mode
2002 14/03/2002 18/03/2002 - YES The Instrument is in Heater with the Mechanism Drive Electronics (MDE) off.  Note that a low temperature monitoring limit of the Steering Front Assembly triggered a reconfiguration of GOMOS into Standby/refuse mode. The monitoring threshold was decreased from –8deg C to –12 deg C and the Flight Operations Plan/Flight Operations Manual (FOP/FOM) will be updated to reflect that modification
2002 18/03/2002 19/03/2002 - YES The major event for GOMOS was the release of the Steering Front Assembly (SFA) which was successfully completed over a combined Kiruna/Vilspa pass. After this a SFA calibration was performed
2002 19/03/2002 19/03/2002 - YES The GOMOS Steering Front Assembly was unlocked succesfully (allows pointing of the telescope in azimuth and elevation). The instrument driven by mission planning performs star occultation measurements in a nominal manner (first star spectra have been generated). Note that a misalignment of 0.3 deg was identified (acquisition of the stars at the edge of the CCD) and temporarily corrected by an angular bias offset. An Anomaly Report was raised.
2002 15/04/2002 12:14 15/04/2002 15:20 650-652 NO GOMOS Out of measurement mode: GOMOS experienced the Category B anomaly 'Consecutive Target Not Detected'
2002 25/04/2002 23:05 27/04/2002 22:02 800-827 YES GOMOS Out of measurement mode: first CCD temperature decrease, orbit 800
2002 09/05/2002 01:51 09/05/2002 10:14 988-992 NO GOMOS Out of measurement mode: Fine Control Manoeuvre (FCM)
2002 10/05/2002 12:12 10/05/2002 15:41 1008-1010 NO GOMOS unavailable. GOMOS recovered to pause mode
2002 11/05/2002 12:54 15/05/2002 20:58 1022-1085 NO GOMOS Out of measurement mode: Payload into suspended mode. GOMOS Back to Mission Planning System (MPS)
2002 13/05/2002 10:15 13/05/2002 10:15 1050 YES GOMOS already out of measurement mode: second CCD temperature decrease
2002 27/05/2002 01:38 29/05/2002 20:16 1245-1284 NO GOMOS Out of measurement mode: Payload Switch OFF
2002 05/06/2002 21:18 11/06/2002 15:35 1385-1466 NO GOMOS Out of measurement mode: Payload Switch OFF
2002 10/08/2002 13:20 12/08/2002 13:04 2326-2354 NO GOMOS Out of measurement mode: GOMOS in HEATER-REFUSE. Service restored in PAUSE mode
2002 14/08/2002 11:41 14/08/2002 13:38 2382-2383 NO GOMOS Out of measurement mode: GOMOS in HEATER-REFUSE mode
2002 24/08/2002 08:05 25/08/2002 00:48 2523-2533 NO GOMOS Out of measurement mode: CF Consecutive Rallying Impossible and CE Coarse Rallying Failed and auto-switch trigger event CF77
2002 28/08/2002 07:28 28/08/2002 09:45 2579-2581 NO GOMOS Out of measurement mode: GOMOS in HEATR-REFUSE mode
2002 28/08/2002 10:49 28/08/2002 22:43 2581-2589 NO GOMOS Out of measurement mode: GOMOS in HEATR-REFUSE mode
2002 08/09/2002 07:10 11/09/2002 12:00 2737-2783 YES GOMOS Out of measurement mode: third CCD temperature decrease, orbit 2780
2002 12/09/2002 01:51 12/09/2002 10:07 2791-2796 NO GOMOS Out of measurement mode: GOMOS in HEATR-REFUSE mode
2002 26/10/2002 15:04 26/10/2002 20:26 3429-3432 NO GOMOS Out of measurement mode: GOMOS in HEATR-REFUSE mode
2002 07/11/2002 17:08 07/11/2002 20:26 3602-3604 YES GOMOS Out of measurement mode: Fine Control Mode (FCM)
2002 18/11/2002 04:38 20/11/2002 18:47 3752-3790 YES GOMOS Out of measurement mode: For Leonids; Recovered from planned Service Module (SM) Switch Off Line (SOL)
2002 29/11/2002 02:26 29/11/2002 05:40 3908-3910 YES GOMOS Out of measurement mode: FCM
2002 18/12/2002 02:25 19/12/2002 06:00 4180-4196 YES GOMOS Out of measurement mode: Out-Of-Plane (OOP) Orbit Control Manoeuvre (OCM) + FCM
2003 13/01/2003 22:05 14/01/2003 03:02 4564-4567 YES GOMOS Out of measurement mode: 2-burn OCM
2003 11/02/2003 21:40 12/02/2003 00:20 4978-4980 YES GOMOS Out of measurement mode: FCM
2003 20/02/2003 07:27 26/02/2003 15:34 5099-5189 NO GOMOS Out of measurement mode: Payload (PL) SOL. Following failure of the Payload Module Computer (PMC) TT Q Pack procedure the PMC was switched to SUSPEND manually by command
2003 03/03/2003 21:25 04/03/2003 01:05 5265-5267 YES GOMOS Out of measurement mode: FCM
2003 15/03/2003 04:21 19/03/2003 14:36 5426-5490 NO GOMOS Out of measurement mode: Subsystems unavailable, autonomous Payload switch-off
2003 22/03/2003 19:02 24/03/2003 20:20 5535-5565 NO GOMOS Out of measurement mode: GOMOS AUTOSWITCH to STANDBY / REFUSE MODE. Voice Coil Command Saturation (VCOIL CMDSAT)
2003 24/03/2003 21:19 25/03/2003 21:29 5565-5580 NO GOMOS Out of measurement mode: GOMOS in STANDBY-REFUSE mode
2003 29/03/2003 17:40 29/03/2003 17:40 5635 YES Minimum allowed azimuth angle set to 0.0
2003 03/04/2003 23:30 04/04/2003 01:56 5710-5711 YES GOMOS Out of measurement mode: FCM
2003 07/04/2003 18:24 08/04/2003 09:35 5764-5773 NO Anomalies reported by High Speed Multiplexer (HSM) leading to possible corruption of instrument science data
2003 20/04/2003 14:27 20/04/2003 16:29 5947-5949 NO GOMOS Out of measurement mode: GOMOS in Heater-Refuse; GOMOS recovered to PAUSE. Anomaly has been due to Steering Front Assembly (SFA) rallying
2003 23/04/2003 11:41 24/04/2003 22:26 5989-6010 NO GOMOS Out of measurement mode: GOMOS went to STANBY/REFUSE during Occultation
2003 28/04/2003 10:38 28/04/2003 18:40 6060-6065 YES GOMOS unavailable owing to azimuth range check; GOMOS picked up mission planning in occultation mode
2003 31/05/2003 06:22 31/05/2003 06:22 6530 YES Minimum allowed azimuth angle set to +4.0
2003 01/05/2003 05:35 31/05/2003 06:22 6100-6530 NO GOMOS Out of measurement mode: GOMOS is in standby refuse mode
2003 06/06/2003 21:45 07/06/2003 02:25 6625-6627 YES GOMOS Out of measurement mode: FCM
2003 07/06/2003 18:07 10/06/2003 17:48 6637-6680 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse due to failure in the fine rallying phase
2003 10/06/2003 18:12 11/06/2003 10:36 6680-6690 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode
2003 11/06/2003 11:25 13/06/2003 12:51 6690-6720 NO GOMOS Out of measurement mode: GOMOS in heater refuse; GOMOS picked up Mission Planning schedule again
2003 16/06/2003 16:17 16/06/2003 16:17 6765 YES Minimum allowed azimuth angle set to +12.0
2003 28/06/2003 01:30 17/07/2003 01:39 6927-7200 NO GOMOS Out of measurement mode: GOMOS Equipment Switch Off Line (EQSOL)   GOMOS switch from side ‘A' to the redundant ICU/MDE ‘B' (12/07/2003)   Nominal full azimuth range available again: [-10.8, +90.8]
2003 04/09/2003 22:52 06/09/2003 18:22 7914-7940 NO GOMOS Out of measurement mode: PLSOL
2003 08/09/2003 04:24 08/09/2003 20:47 7960-7970 NO GOMOS Out of measurement mode: HEATER REFUSE mode due to Star centering failure
2003 13/09/2003 09:45 16/09/2003 21:36 8035-8085 NO GOMOS Out of measurement mode: GOMOS ICU STATUS: RS/WT/INI.    RBI ERROR
2003 29/09/2003 23:05 30/05/2003 01:56 8272-8273 YES GOMOS Out of measurement mode: FCM
2003 28/10/2003 02:55 29/10/2003 06:00 8675-8691 YES GOMOS Out of measurement mode: Instrument commanded into required mode for the scheduled OCM and Central Communication Unit (CCU) Flight Software (CFS) patch
2003 30/10/2003 23:35 31/10/2003 02:27 8716-8717 YES GOMOS Out of measurement mode: Interruption of instrument operations due to a planned FCM
2003 05/11/2003 22:08 06/11/2003 02:50 8801-8803 YES GOMOS Out of measurement mode: FCM. Stellar FCM (SFCM) has been delayed. Due to the on-going uncertainty in solar activity
2003 18/11/2003 21:52 19/11/2003 01:07 8987-8988 YES GOMOS Out of measurement mode: FCM
2003 03/12/2003 07:18 05/12/2003 04:29 9193-9220 NO GOMOS Out of measurement mode: PLSOL
2003 15/12/2003 19:25 15/12/2003 22:20 9372-9373 YES GOMOS Out of measurement mode: FCM
2003 26/12/2003 18:39 26/12/2003 22:20 9529-9531 YES GOMOS Out of measurement mode: FCM
2004 21/01/2004 21:45 22/01/2004 01:00 9903-9905 YES GOMOS Out of measurement mode: SFCM
2004 26/01/2004 20:45 27/01/2004 06:44 9974-9980 YES GOMOS Out of measurement mode: GOMOS in PAUSE / SFA CALIBRATED due SFCM
2004 04/02/2004 02:40 04/02/2004 13:20 10092-10098 YES GOMOS Out of measurement mode: OCM
2004 05/02/2004 08:41 05/02/2004 17:04 10110-10115 YES GOMOS Unavailable due to SFCM Touch-up manoeuvre
2004 18/02/2004 02:25 18/02/2004 15:15 10292-10300 NO GOMOS Out of measurement mode: Mode transition to Heater/Refuse due to Category B Anomaly
2004 24/02/2004 10:30 24/02/2004 13:01 10383-10384 YES GOMOS Out of measurement mode: FCM
2004 24/03/2004 15:46 24/03/2004 21:58 10801-10805 NO GOMOS Out of measurement mode: GOMOS in HEATER / REFUSE mode due CAT B Anomaly
2004 07/04/2004 18:00 07/04/2004 21:21 11003-11005 YES GOMOS Out of measurement mode: FCM
2004 14/04/2004 02:45 14/04/2004 14:00 11094-11100 YES GOMOS Out of measurement mode: OCM and MIPAS
2004 06/05/2004 22:50 07/05/2004 02:24 11421-11423 YES GOMOS Out of measurement mode: FCM Maintenance
2004 30/06/2004 05:47 30/06/2004 17:19 12198-12205 YES GOMOS Out of measurement mode: SFCM
2004 17/08/2004 00:25 17/08/2004 03:20 12882-12883 YES GOMOS Out of measurement mode: FCM
2004 01/09/2004 21:03 02/09/2004 07:07 13109-13115 YES GOMOS Out of measurement mode: SFCM
2004 02/09/2004 22:13 03/09/2004 08:16 13124-13130 YES GOMOS Out of measurement mode: SFCM
2004 21/09/2004 03:00 22/09/2004 05:00 13384-13400 YES GOMOS Out of measurement mode: OCM
2004 24/09/2004 02:20 24/09/2004 05:10 13427-13428 YES GOMOS Out of measurement mode: SFCM
2004 22/10/2004 01:00 22/10/2004 14:13 13827-13835 YES GOMOS Out of measurement mode: GOMOS Out of measurement mode: SFCM
2004 11/11/2004 23:40 12/11/2004 02:21 14126-14128 YES GOMOS Out of measurement mode: FCM
2004 16/12/2004 23:47 17/12/2004 02:35 14628-14629 YES GOMOS Out of measurement mode: FCM
2005 05/01/2005 21:44 06/01/2005 00:59 14913-14915 YES GOMOS Out of measurement mode: SFCM
2005 07/01/2005 03:00 07/01/2005 13:00 14930-14936 YES GOMOS Out of measurement mode: OCM
2005 24/01/2005 13:47 25/01/2005 22:50 15180-15200 NO GOMOS Out of measurement mode: GOMOS IN STANDBY/REFUSE due to VOICE COIL COMMAND SATURATION (VCCS)
2005 25/01/2005 23:33 03/03/2005 23:26 15200-15730 NO GOMOS Out of measurement mode: GOMOS IN STANDBY/REFUSE due to VOICE COIL COMMAND SATURATION

 

All ICU critical anomalies switched into non-critical since 26/01/2005
2005 05/03/2005 05:01 18/07/2005 13:21 15747-17685 NO GOMOS Out of measurement mode: GOMOS is in standby/refuse mode owing to VOICE COIL COMMAND SATURATION (VCOIL CMDSAT)
2005 09/06/2005 12:32 09/06/2005 12:32 17126 YES

GOMOS is at this moment out of measurement mode.

SFA anomaly criticality changed into non-critical: the scope is that COMOS does not switch down to REFUSE mode when VCCS occurs, but just skip the star and measures the following one
2005 12/08/2005 09:00 12/08/2005 11:55 18040-18042 YES GOMOS Out of measurement mode: GOMOS Steering  Front Mechanism (SFM) TEST as agreed by Anomaly Review Board (ARB)
2005 12/08/2005 12:19 18/08/2005 02:05 18042-18122 NO GOMOS unavailable due to VOICE COIL ANOMALY
2005 29/08/2005 02:52 29/08/2005 02:52 18280 YES GOMOS declared fully operational after anomaly of January 2005.   Azimuth range reduced to fix window of 20 degrees: [-10, +10]
2005 07/09/2005 04:20 07/09/2005 13:40 18409-18415 YES GOMOS Out of measurement mode: OCM
2005 09/10/2005 21:30 09/10/2005 21:30 18878 YES Fix reduced azimuth window moved from 20 to 25 degrees: [-5, +20]
2005 21/12/2005 05:33 21/12/2005 09:54 19913-19916 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode due to centering failed
2006 09/01/2006 00:59 09/01/2006 01:00 20182-20182 NO GOMOS Out of measurement mode: GOMOS in Standby/REFUSE mode due to Sun shade position not reached; Configured for scheduled OCM. Switch to Standby/Refuse due to known anomaly
2006 09/01/2006 23:24 10/01/2006 16:10 20182-20204 YES GOMOS Out of measurement mode: Configured for scheduled OCM.
Instrument resumes operations (MPS) following the scheduled OCM
2006 12/03/2006 17:29 12/03/2006 17:29 21080 YES Fix reduced azimuth window of [-5, +20] degrees becomes a sliding window of 25 degrees
2006 27/03/2006 02:43 28/03/2006 13:08 21285-21306 YES GOMOS Out of measurement mode: OCM
2006 06/04/2006 02:09 09/04/2006 12:54 21428-21478 NO GOMOS Out of measurement mode: SM DSL after memory reconfiguration due to SM On-Board Data Handling (OBDH) anomalies
2006 14/05/2006 16:17 14/05/2006 20:06 21981-21983 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode due to Failure in fine rallying phase
2006 07/09/2006 16:40 11/09/2006 17:05 23641-23699 NO GOMOS Out of measurement mode: Payload off due to Service Module Anomaly; Global Attitude and Orbit Control System (AOCS) Surveillance triggered - STD Deviation Anomaly; GOMOS operational again in Heater mode
2006 11/09/2006 17:05 13/09/2006 12:53 23699-23725 YES GOMOS Out of measurement mode: OCM
2006 15/10/2006 11:10 15/10/2006 18:55 24182-24187 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode due to Failure in fine rallying phase
2006 28/11/2006 07:58 30/11/2006 16:24 24810-24844 YES GOMOS Out of measurement mode: GOMOS back in Measurement after SM Memory Maintenance
2006 12/12/2006 18:02 16/12/2006 14:44 25016-25072 NO GOMOS Out of measurement mode: Due to a LVL 3 PROTOCOL ERROR AND INTERRUPT, all Instruments are Unavailable
2006 29/12/2006 08:16 29/12/2006 11:12 25254-25256 NO GOMOS Out of measurement mode: GOMOS switched in PAUSE mode for resetting its High Speed Multiplexer (HSM) input
2007 21/01/2007 23:51 23/01/2007 12:07 25592-25614 YES GOMOS Out of measurement mode: OCM
2007 01/02/2007 23:26 02/02/2007 19:34 25750-25762 NO GOMOS Out of measurement mode: GOMOS in ICU RS/WT/INI
2007 01/04/2007 23:50 03/04/2007 07:00 26594-26613 YES GOMOS Out of measurement mode: OCM
2007 21/05/2007 02:06 21/05/2007 04:48 27297-27299 NO GOMOS Out of measurement mode: Due to a commanding conflict during Svalbard pass #27282 about 2.5 hours worth of payload commands did not make it on-board, causing various subsystem operations to be affected
2007 15/07/2007 22:03 17/07/2007 07:00 28096-28116 YES GOMOS Out of measurement mode: OCM
2007 05/09/2007 03:20 05/09/2007 10:21 28829-28834 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode due to centering failed
2007 23/09/2007 21:58 25/09/2007 23:19 29098-29128 YES GOMOS Out of measurement mode: OCM and Memory Maintenance
2007 24/09/2007 12:27 27/09/2007 22:16 29107-29156 NO GOMOS Out of measurement mode: Payload switch-off due to Service Module Anomaly (Global AOCS Surveillance triggered)
2007 02/12/2007 17:30 03/12/2007 04:30 30098-30104 NO GOMOS Unavailable due to missing MPS commands
2007 03/12/2007 04:30 04/12/2007 23:10 30104-30130 YES GOMOS Out of measurement mode: OCM and Maintenance
2007 13/12/2007 05:00 13/12/2007 15:01 30248-30253 YES GOMOS Out of measurement mode: Memory Maintenance
2008 16/01/2008 16:11 17/01/2008 10:35 30741-30752 NO Due to an HSM anomaly no Low Rate Data is being transmitted (including GOMOS data). Back to operations after HSM reset
2008 17/01/2008 10:01 17/01/2008 13:22 30752-30754 NO GOMOS Unavailable due to HSM recovery
2008 19/01/2008 13:02 19/01/2008 19:08 30782-30786 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode due to Failure in fine rallying phase
2008 02/02/2008 08:17 02/02/2008 08:17 30980 YES Sliding reduced azimuth window of 25 degrees moved to 30 degrees
2008 10/02/2008 23:47 11/02/2008 09:09 31103-31109 NO GOMOS Out of measurement mode: GOMOS in Standby/REFUSE mode due to Sun shade position not reached
2008 11/02/2008 09:09 12/02/2008 08:59 31109-31123 YES GOMOS Out of measurement mode: OCM
2008 10/04/2008 21:21 11/04/2008 15:38 31961-31972 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode due CAT B ANOMALY, Fine Stage Out Of Range (FSTG O/ORNG)
2008 20/04/2008 22:07 20/04/2008 22:11 32104-32104 NO GOMOS Out of measurement mode: GOMOS in Standby/REFUSE mode due to Sun shade position not reached; GOMOS commanded to sun shade position (Voice Coil anomaly)
2008 20/04/2008 22:11 22/04/2008 07:05 32104-32124 YES GOMOS Out of measurement mode: OCM
2008 29/06/2008 22:03 01/07/2008 06:49 33106-33126 YES GOMOS Out of measurement mode: OCM – restart time is 1st load asyc
2008 10/07/2008 04:43 10/07/2008 18:25 33253-33262 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode due CAT B ANOMALY.(FSTG O/ORNG)
2008 12/07/2008 04:39 12/07/2008 12:24 33282-33287 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode due to Failure in fine rallying phase
2008 13/07/2008 20:27 21/07/2008 12:38 33306-33416 NO GOMOS Out of measurement mode: GOMOS VCCS anomaly exceeded.  GOMOS placed in "HEATER" mode until it was decided to place it again into operations
2008 23/08/2008 08:37 23/08/2008 08:37 33886 YES Minimum allowed azimuth angle set to +2 degrees. Still moving sliding azimuth window is 30 degrees
2008 28/08/2008 02:11 28/08/2008 09:29 33953-33958 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode due to Failure in fine rallying phase
2008 07/09/2008 22:07 09/09/2008 06:49 34108-34128 YES GOMOS Out of measurement mode: OCM
2008 07/09/2008 22:08 09/09/2008 06:49 34108-34128 NO GOMOS Out of measurement mode: GOMOS in Standby/REFUSE mode due to Sun shade position not reached (Voice Coil anomaly). After performance of planned OCM, returned to operations
2008 16/11/2008 22:06 18/11/2008 07:01 35110-35130 YES GOMOS Out of measurement mode: OCM
2009 25/01/2009 23:43 27/01/2009 06:51 36113-36132 YES GOMOS Out of measurement mode: OCM
2009 25/01/2009 23:47 27/01/2009 06:51 36113-36132 NO GOMOS Out of measurement mode: GOMOS in Standby/REFUSE mode due to Sun shade position not reached (Voice Coil anomaly). Back to measurement after OCM
2009 03/02/2009 16:27 09/02/2009 06:16 36238-36318 YES GOMOS Out of measurement mode: GOMOS operations interrupted due to Star Tracker Acquisition Unit (SATU) ‘Y' axis anomaly
2009 09/02/2009 11:41 12/02/2009 04:39 36321-36360 YES GOMOS Out of measurement mode: GOMOS operations interrupted due to SATU ‘Y' axis anomaly
2009 12/02/2009 20:03 02/03/2009 17:02 36369-36625 YES GOMOS Out of measurement mode: GOMOS operations interrupted due to SATU ‘Y' axis anomaly
2009 15/03/2009 08:58 16/03/2009 14:40 36806-36824 NO GOMOS Out of measurement mode: GOMOS VCCS anomaly exceeded.  GOMOS placed in "HEATER" mode until it was decided to place it again into operations
2009 29/03/2009 16:38 30/03/2009 20:43 37011-37028 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode (reason and exact time unknown -history area space empty)
2009 31/03/2009 10:21 01/04/2009 12:58 37036-37052 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode due to Failure in fine rallying phase
2009 05/04/2009 23:44 07/04/2009 06:51 37115-37134 YES GOMOS Out of measurement mode: OCM
2009 28/04/2009 13:03 29/04/2009 10:24 37438-37451 NO GOMOS Out of measurement mode: due to an HSM anomaly no Low Rate Data is being transmitted (including GOMOS data). Back to operations after HSM reset
2009 29/04/2009 09:00 29/04/2009 11:44 37450-37452 NO GOMOS Out of measurement mode: due to full HSM reset
2009 24/06/2009 06:02 25/06/2009 15:09 38250-38270 NO GOMOS Out of measurement mode: GOMOS commanded to pause (Then to heater MDE ON) due to too many VCCS anomalies
2009 26/06/2009 07:48 26/06/2009 07:48 38280 YES Azimuth range fixed to [+30, +50]
2009 26/06/2009 09:37 26/06/2009 13:17 38281-38283 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode due to Failure in fine rallying phase
2009 26/06/2009 14:25 26/06/2009 17:55 38283-38286 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode due to centering failed; GOMOS back to operational after recovery from HEATER/REFUSE to PAUSE
2009 26/06/2009 21:19 29/06/2009 09:35 38288-38324 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode due to centering failed   Main gain of the tracking elevation filter    (FILTER_6_EL_GAIN) changed from 100 to 150. This gain increase works for all frequencies
2009 06/07/2009 14:41 06/07/2009 16:00 38427-38428 YES GOMOS unavailable due to elevation filter gain modification: main gain of the tracking elevation filter (FILTER_6_EL_GAIN) changed from 150 to 200. This gain increase works for all frequencies
2009 13/07/2009 14:18 13/07/2009 15:41 38527-38528 YES GOMOS unavailable due to planned full elevation excursion test
2009 17/07/2009 06:48 17/07/2009 06:48 38580 YES Azimuth range fixed to [+25, +50]
2009 19/07/2009 22:05 21/07/2009 06:48 38617-38637 YES GOMOS Out of measurement mode: OCM
2009 19/07/2009 22:09 21/07/2009 06:48 38617-38637 NO GOMOS Out of measurement mode: GOMOS in Standby/REFUSE mode due to Sun shade position not reached. Back to measurement after the OCM
2009 22/09/2009 08:51 22/09/2009 15:07 39540-39544 YES GOMOS Out of measurement mode: GOMOS Instrument Control Unit (ICU) stopped for up linking "soft" patch (tracking controller tuning). The effect is a gain increase only for low frequencies
2009 23/09/2009 19:51 25/09/2009 16:51 39561-39587 NO GOMOS Out of measurement mode: GOMOS commanded to pause (Then to heater MDE ON) due to too many VCCS anomalies  

GOMOS reconfigured as before the patch uploaded on 22/09/2009
2009 28/09/2009 02:08 29/09/2009 08:03 39622-39640 YES GOMOS Out of measurement mode: OCM
2009 01/10/2009 15:46 01/10/2009 15:46 39673-39675 YES

Elevation filter gain in Rallying changed from 7.64 (nominal) to 3.8. After two orbits, set back to nominal value
2009 01/10/2009 17:05 01/10/2009 20:26 39674-39676 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode due to Failure in fine rallying phase
2009 02/10/2009 06:57 02/10/2009 10:14 39682-39684 YES

Main gain of the tracking elevation filter (FILTER_6_EL_GAIN) changed from 200 to 300. After two orbits, set back to 200. This gain increase works for all frequencies
2009 08/10/2009 07:08 08/10/2009 16:43 39768-39774 YES

GOMOS unavailable for up linking again "soft" patch (tracking controller tuning). The effect is a gain increase only for low frequencies
2009 08/10/2009 16:43 08/10/2009 18:36 39774-39775  

Elevation filter gain in Rallying set to 5.7, after these two orbits again set to nominal value 7.64
2009 20/10/2009 07:31 20/10/2009 07:31 39940 YES

Elevation filter gain in Rallying changed from 7.64 (nominal) to 10
2009 22/10/2009 06:30 22/10/2009 16:07 39968-39974 YES GOMOS Out of measurement mode: GOMOS Power OFF/ON. Uplink again "soft" patch (tracking controller tuning). The effect is a gain increase only for low frequencies.

 

Elevation filter gain in Rallying changed from 7.64 (nominal) to 10
2009 27/10/2009 12:13 27/10/2009 12:13 40043 YES

Elevation filter gain in Rallying changed from 10 to 5.7
2009 28/10/2009 08:20 28/10/2009 12:55 40055-40058 NO GOMOS unavailable: Reset/Restart GOMOS due to excessive VCCS Anomalies. Power OFF/ON with "soft" patch (tracking controller tuning) reloaded   Elevation filter gain in Rallying changed to 7.64 (nominal)
2009 29/10/2009 09:28 29/10/2009 12:23 40070-40072 YES GOMOS Out of measurement mode: GOMOS commanded to STANDBY and then to HEATER MDE OFF. ICU has not been switched OFF/ON. "Soft" patch has not been reloaded, guessing it has not been corrupted by the STANDBY mode

 

Elevation filter gain in Rallying changed from 7.64 (nominal) to 10
2009 30/10/2009 01:46 30/10/2009 01:46 40080 YES Azimuth range set to sliding moving window of 30 degrees with minimum allowed azimuth angle set to +5 degrees
2009 08/12/2009 01:23 08/12/2009 07:57 40638-40641 YES GOMOS Unavailable due to planned manoeuvre (OCM)
2010 09/01/2010 18:20 11/01/2010 16:59 41106-41134 NO GOMOS Out of measurement mode: GOMOS commanded to PAUSE mode due to too many VCCS anomalies
2010 13/01/2010 11:26 13/01/2010 15:56 41159-41162 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 14/01/2010 07:29 14/01/2010 07:29 41171 YES

Elevation filter gain in Rallying set to 12
2010 14/01/2010 12:14 14/01/2010 15:27 41174-41176 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 17/01/2010 10:39 17/01/2010 13:48 41216-41218 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 17/01/2010 17:22 18/01/2010 09:56 41220-41230 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 18/01/2010 10:21 18/01/2010 10:21 41230 YES

Elevation filter gain in Rallying set to 10
2010 21/01/2010 06:53 21/01/2010 11:43 41271-41274 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 25/01/2010 10:01 25/01/2010 10:01 41330 YES

Elevation filter gain in Rallying set to 7.64 (nominal)
2010 04/02/2010 14:47 04/02/2010 14:47 41476 YES

Elevation filter gain in Rallying set to 5.7
2010 05/02/2010 09:17 05/02/2010 09:17 41487 YES

Elevation filter gain in Rallying set to 10
2010 06/02/2010 14:28 06/02/2010 20:03 41504-41508 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 08/02/2010 09:24 08/02/2010 09:24 41530 YES Elevation filter gain in Rallying set to 7.64 (nominal)
2010 08/02/2010 14:30 08/02/2010 22:22 41533-41538 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 09/02/2010 02:53 09/02/2010 11:47 41540-41546 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 10/02/2010 11:32 10/02/2010 14:35 41560-41562 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 10/02/2010 17:27 10/02/2010 21:18 41563-41566 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 11/02/2010 08:00 11/02/2010 14:05 41572-41576 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 11/02/2010 09:28 11/02/2010 09:28 41573 YES Elevation filter gain in Rallying set to 5
2010 12/02/2010 01:03 12/02/2010 10:12 41582-41588 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 12/02/2010 07:17 12/02/2010 07:17 41586 YES Elevation filter gain in Rallying set to 3.8
2010 13/02/2010 09:57 13/02/2010 13:01 41602-41604 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 15/02/2010 18:38 15/02/2010 21:59 41636-41638 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 16/02/2010 01:58 16/02/2010 11:24 41640-41646 YES GOMOS Out of measurement mode: OCM
2010 19/02/2010 22:42 20/02/2010 09:18 41695-41702 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 20/02/2010 12:18 20/02/2010 16:01 41703-41706 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 20/02/2010 17:20 22/02/2010 11:37 41706-41732 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 25/02/2010 20:04 25/02/2010 20:04 41780 YES Minimum allowed azimuth angle set to 15 degrees. Still azimuth sliding moving window of 30 degrees
2010 27/04/2010 01:16 27/04/2010 07:49 42641-42645 YES GOMOS Out of measurement mode: OCM
2010 25/05/2010 04:50 25/05/2010 10:04 43044-43048 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 06/07/2010 01:21 06/07/2010 08:05 43644-43648 YES GOMOS Out of measurement mode: OCM
2010 09/09/2010 12:11 09/09/2010 17:33 44580-44584 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 10/09/2010 13:18 13/09/2010 08:45 44595-44636 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2010 13/09/2010 14:08 16/09/2010 10:31 44639-44680 NO GOMOS Out of measurement mode: GOMOS commanded to PAUSE mode
2010 16/09/2010 10:21 16/09/2010 10:21 44680 YES Maximum allowed azimuth angle set to +55. Still minimum allowed azimuth angle is +15, and still sliding moving window is 30 degrees
2010 21/10/2010 23:59 29/11/2010 08:27 45189-45740 YES GOMOS unavailable due to ENVISAT Orbit lowering manoeuvre. The instrument could not be restarted before end of November 2010 due to an anomaly on the planning system
2011 07/02/2011 23:59 08/02/2011 08:27 46754-46760 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 03/04/2011 15:51 05/04/2011 14:16 47540-47550 NO GOMOS Out of measurement mode: All payload switch-off due to Service Module Anomaly (IT1 CCU Register ACESS)
2011 25/06/2011 14:01 25/06/2011 21:32 48731-48736 NO GOMOS Out of measurement mode: GOMOS in STANDBY/REFUSE due to a MAJOR BUS ERROR
2011 05/07/2011 07:22 06/07/2011 06:45 48871-48885 YES First annealing procedure: detectors temperature increase of +10 degrees (first step)
2011 06/07/2011 06:45 07/07/2011 06:09 48885-48889 YES First annealing procedure: detectors temperature increase of +14 degrees (second step)
2011 12/07/2011 06:29 14/07/2011 15:10 48971-49005 YES Second annealing procedure: detectors temperature increase in a single step of +24 degrees
2011 13/07/2011 23:42 14/07/2011 06:29 48995-49000 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 24/08/2011 20:21 25/08/2011 04:13 49597-49602 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 29/08/2011 07:11 29/08/2011 15:10 49661-49666 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 29/08/2011 18:46 30/08/2011 14:34 49668-49680 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 01/09/2011 03:46 01/09/2011 13:22 49702-49708 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 03/09/2011 06:10 03/09/2011 12:08 49732-49736 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 04/09/2011 06:16 05/09/2011 17:36 49746-49768 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 05/09/2011 18:18 06/09/2011 00:17 49768-49772 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 07/09/2011 00:22 07/09/2011 06:21 49786-49790 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 07/09/2011 17:05 07/09/2011 23:02 49796-49800 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 09/09/2011 03:28 09/09/2011 08:28 49817-49820 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 09/09/2011 11:50 09/09/2011 17:08 49822-49825 NO GOMOS Out of measurement mode: GOMOS in STANDBY/REFUSE
2011 10/09/2011 02:33 12/09/2011 19:59 49830-49870 NO GOMOS Out of measurement mode: GOMOS ICU off
2011 13/09/2011 00:47 14/09/2011 08:45 49872-49892 NO GOMOS Out of measurement mode: GOMOS ICU off
2011 14/09/2011 11:48 14/09/2011 18:46 49893-49898 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode due to failure in the fine rallying phase
2011 16/09/2011 04:02 16/09/2011 10:52 49918-49922 NO GOMOS Out of measurement mode: GOMOS ICU off
2011 19/09/2011 18:53 19/09/2011 22:14 49970-49972 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 21/09/2011 13:05 21/09/2011 14:21 49995-49996 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 21/09/2011 18:06 21/09/2011 21:01 49998-50000 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 21/09/2011 22:37 22/09/2011 00:22 50000-50002 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 22/09/2011 03:38 22/09/2011 07:02 50003-50006 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 22/09/2011 08:54 22/09/2011 10:57 50007-50008 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode due to Failure in fine rallying phase
2011 22/09/2011 11:59 22/09/2011 17:05 50008-50012 NO GOMOS Out of measurement mode: GOMOS ICU Power Down
2011 22/09/2011 20:20 22/09/2011 23:56 50013-50016 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 23/09/2011 01:26 23/09/2011 10:36 50017-50022 NO GOMOS Out of measurement mode: GOMOS ICU Power Down
2011 23/09/2011 12:17 23/09/2011 16:39 50023-50026 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 23/09/2011 19:44 26/09/2011 12:04 50027-50066 NO GOMOS Out of measurement mode: GOMOS ICU Power Down
2011 26/09/2011 21:15 27/09/2011 10:39 50071-50080 NO GOMOS Out of measurement mode: GOMOS ICU Power Down
2011 27/09/2011 13:57 27/09/2011 14:35 50081-50082 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode due to Failure in fine rallying phase
2011 27/09/2011 22:18 28/09/2011 03:21 50086-50090 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 28/09/2011 21:42 29/09/2011 02:45 50100-50104 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 30/09/2011 11:56 02/10/2011 11:01 50123-50152 NO GOMOS Out of measurement mode: GOMOS ICU Power Down
2011 03/10/2011 00:24 03/10/2011 03:39 50160-50162 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 03/10/2011 17:54 03/10/2011 20:22 50170-50172 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 03/10/2011 23:43 04/10/2011 03:03 50174-50176 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 04/10/2011 11:22 04/10/2011 13:04 50181-50182 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 04/10/2011 15:38 12/10/2011 08:25 50183-50294 NO GOMOS Out of measurement mode: GOMOS ICU Power Down
2011 12/10/2011 16:46 12/10/2011 21:32 50299-50302 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE due to target not detected (CTRGT N/DTCT)
2011 13/10/2011 06:08 13/10/2011 07:33 50307-50308 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE due to target not detected (CTRGT N/DTCT)
2011 23/10/2011 09:39 23/10/2011 09:39 50453 YES Azimuth range set to [+40, +55]
2011 23/10/2011 10:21 23/10/2011 14:50 50453-50456 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 26/10/2011 11:31 26/10/2011 13:01 50497-50498 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 26/10/2011 18:13 07/11/2011 10:15 50501-50668 NO GOMOS Out of measurement mode: GOMOS ICU Power Down
2011 06/11/2011 22:47 06/11/2011 22:47 50662 YES Azimuth range set to [+47, +55]
2011 08/11/2011 08:43 08/11/2011 08:49 50682-50682 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2011 08/11/2011 17:00 25/01/2012 07:20 50687-51802 NO GOMOS Out of measurement mode (HEATER-mode MDE off) except for few testing periods. Attempted side A which was unsuccessful (21/12/2011).   Testing periods (side B again since 15/12/2011): ·         15-16/12/2011: testing ·         02-05/01/2012: testing ·         09-13/01/2012: testing
2012 25/01/2012 07:12 25/01/2012 07:12 51802 YES Few fixed stars occultations
2012 13/02/2012 08:55 13/02/2012 08:55 52076 YES Moving sliding azimuth window of 2 degrees in range [18, 28]. Yields to 1-3 stars per orbit (or no stars)
2012 14/02/2012 18:33 15/02/2012 06:15 52096-52103 NO GOMOS Out of measurement mode: GOMOS in HEATER/REFUSE mode due to Failure in fine rallying phase
2012 15/02/2012 18:06 15/02/2012 19:37 52110-52111 NO GOMOS Out of measurement mode: GOMOS in Heater/Refuse Mode due to Fine stage out-of-range
2012 01/03/2012 03:38 01/03/2012 05:27 52316-52318 YES GOMOS Out of measurement mode: OCM Maintenance
2012 08/04/2012 12:28 - 52868 NO GOMOS Out of measurement mode: No ENVISAT Telemetry and Telecommand on S-Band. Carrier is visible but not modulated.  No Ka-Band and X-Band Data received. Afterwards also carrier lost.
2012 09/05/2012 - - - ESA officially declared the end of mission

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