Minimize SCIAMACHY

The SCIAMACHY menu to your right provide information concerning the SPPA activities for this instrument. 

 

A brief description of the instrument, its operations and main mission highlights is available in the sections below:

  Sensor Description   |    Sensor Modes   |   Mission Operations Overview     

Minimize Mission Operations Overview

The ENVISAT mission with on-board the SCIAMACHY instrument was continuously in operations for ten years, from 01 March 2002 until 08 April 2012. Over the entire duration of the mission, SCIAMACHY was operated successfully without experiencing major anomalies. Operations were mainly nominal with respect to planning. Several events occurred affecting operations and performances, but data resulted in general nominal with limited periods of reduced quality during recovery from decontaminations or anomalies.

 

The following table provides a comprehensive list of the events affecting the SCIAMACHY instrument over the ENVISAT in-orbit mission lifetime: 01 March 2002 - 08 April 2012

 

In addition, the SOST web page tracks events causing a deviation from the SCIAMACHY planned measurements schedule.

 

  SCIAMACHY mission milestones
  Instrument anomaly
  Payload anomaly
  Decontamination
  Orbital Control Manoeuvre (OCM)
  Instrument settings change
  Thermal Control
  Platform attitude anomaly
  Ground Segment (GS) anomaly

 

 

Year

Date

Start

Date

Stop

Orbit

Start

Orbit

Stop

Description
2002 01/03/2002 01:07   1   Successful launch of ENVISAT-1 from Kourou, French Guiana
2002 11/03/2002   147   SCIAMACHY successful switch-on
2002 15/03/2002   197   First measurements of on-board light sources (WLS and SLS) recorded and transmitted to ground
2002 03/04/2002 10:09   477   Successful opening of azimuth cover. First measurements of Earth horizon in orbit 506 (05 April 2002, 10:23 UTC).
2002 13/04/2002 22:39 14/04/2002 09:11 627 634 SCIAMACHY transferred to STANDBY-REFUSE (STB/RF) for SCIAMACHY Radiant Cooler (SRC) Cold Stage Temperature exceeding upper limit
2002 15/04/2002 17:01   635   Successful opening of SRC door
2002 28/04/2002 22:01 30/04/2002 17:36 842 868 SCIAMACHY transferred to HEATER/REFUSE (HTR/RF) for spurious Power Mechanism & Thermal Control Unit (PMTC) dump mode for an out of limit (OOL) for parameter I0100
2002 11/05/2002 12:54 17/05/2002 13:07 1022 1080 SCIAMACHY out of measurement mode: Payload into suspended mode due to Payload Management Computer (PMC) anomaly
2002 17/05/2002 19:53 23/05/200213:54 1113 1195 SCIAMACHY transferred to R/W WAIT for Communication Area (CCA) Macro Command (MCMD) check error
2002 24/05/2002   1213   Start of Switch-On and Data Acquisition Phase (SODAP)
2002 26/05/2002 14:46 29/05/2002 20:41 1238 1285 SCIAMACHY transferred to R/W WAIT for CCA MCMD check error
2002 05/06/2002 21:18 10/06/2002 17:43 1385 1455 SCIAMACHY out of measurement mode: Payload switch-off due to Level 3 Protocol Interrupt
2002 12/06/2002 17:32 14/06/2002 15:30 1483 1511 SCIAMACHY transferred to HTR/RF forOOL of parameter I0270 Mechanisms Status OB Monitor. Anomaly explained as Single Event Upset (SEU).
2002 17/06/2002 08:45 18/06/200208:36 1550 1564 SCIAMACHY transferred to R/W WAIT for CCA MCMD check error
2002 15/07/2002 11:17 16/07/200215:32 1952 1969 SCIAMACHY transferred to R/W WAIT for CCA MCMD check error
2002 27/07/2002 11:28 31/07/2002 01:05 2124 2175 Non-nominal decontamination (NNDEC). Measurements continued throughout the decontamination period.
2002 02/08/2002   2204   Start of validation phase
2002 28/08/2002 18:46 29/08/2002 10:51 2586 2596 SCIAMACHY transferred to HTR/RF Triggered by OOL of parameter I0270 Mechanisms Status OB Monitor. Anomaly explained as SEU .
2002 08/09/2002 07:10 11/09/2002 09:56 2737 2781 SCIAMACHY switched off due to planned Orbital Control Manoeuvre (OCM) for PMC S/W update.
2002 24/10/2002 13:11 24/10/2002 14:11 3399 3399 SCIAMACHY transferred to MEASUREMENT IDLE for Instrument Control Unit (ICU) patch executed to repair MCMD Transfer CCA Check Error which several times in the past suspended operations
2002 30/10/2002   3478   A bug in the co-adding table 25 for clusters 15 & 16 was discovered and corrected via Configurable Transfer Item (CTI) upload.
2002 10/11/2002 13:47 14/11/2002 09:51 3643 3696 A spurious event in the link between SCIAMACHY and the High Speed Multiplexer (HSM) of ENVISAT caused the data stream to be out of sync. All measurement data were corrupted.HSM partially reset to establish synchronization again.
2002 17/11/2002 20:04 18/11/2002 06:43 3746 3752 NNDEC. Measurements continued throughout the decontamination period. Data are of degraded quality.
2002 18/11/2002 04:30 20/11/2002 19:00 3752 3789 SCIAMACHY out of measurement mode: Service Module (SM) Switch Off Line (SOL) to prevent damage from the expected Leonid meteor shower &PMTC patch to correct sign error in on-board S/W module
2002 20/11/2002   3748   PMTC patch corrected a sign error in the scanner control software for limb states. This error caused an across-track shift of the limb ground pixels. Geolocation of nadir and limb pixel displayed the desired along- and across-track matching afterwards.
2002 30/11/2002 07:01 02/12/2002 14:20 3925 3958 SCIAMACHY transferred to HTR/RF for parameter mismatch due to incomplete tables upload
2002 04/12/2002 06:07 04/12/2002 16:36 3981 3990 SCIAMACHY transferred to HTR/RF for parameter mismatch due to incomplete tables upload. Several CTI files had not been up-linked because they had lower version numbers than ones used for the recovery of previous failure.
2002     4019 4028  
2002 12/12/2002 01:09 13/12/2002 05:11 4093 4110 SCIAMACHY transferred to HTR/RF following timeline state 01 for parameter mismatch
2002     4151   Upload of the final flight settings (state and timeline configurations). Routine measurements start in orbit 4204
2002 17/12/2002 08:03 17/12/2002 23:10 4169 4178 SCIAMACHY transferred to HTR/RF for parameter mismatch
2002 18/12/2002 02:25 18/12/2002 14:00 4180 4187 transfer to HTR for out-of-plane OCM& FCM
2002 19/12/2002 20:02 04/01/2003 11:25 4204 4428 NNDEC. End of cool down occurs in orbit 4464 (6th January).
2003 04/01/2003 11:26 06/01/2003 12:09 4428 4457 SCIAMACHY transferred to HTR/RF for OOL Azimuth Scan Mechanism (ASM) overcurrent due to Single Event Transient (SET) in the PMTC / ASMcontrol electronics
2003 15/02/2003 19:15 18/02/2003 12:48 5034 5073 SCIAMACHY transferred to R/W WAIT for CCA MCMD check error
2003 20/02/2002 07:27 22/02/2002 21:02 5099 5136 SCIAMACHY out of measurement mode: PLSOL following failure of the PMC TT Q Pack procedure
2003 10/03/2003 09.23   5358   Operations Change Request (OCR) 001 - Reduce Pixel Exposure Time (PET) for moon occultation states (IDs 56 & 57) and states 54 & 55 from 2 s to 1 s in all channels in order to increase the spatial resolution.
2003 15/03/2003 04:21 18/03/2003 23:28 5426 5481 SCIAMACHY out of measurement mode: Autonomous Payload switch-off. Related to an Artemis test.
2003 16/03/2003 - 5887 - Thermal Control (TC) adjustment for detectors 5 and 8. SOR 02
2003 20/03/2003 10:57 21/03/2003 10:40 5502 5516 SCIAMACHY transferred to R/W WAIT for MCMD CCA check error (missing corrective S/W patch during recent switch-on)
2003 31/03/2003   5656   OCR 002 - correct vignetting of readouts on the right side of the swath in nadir observations. Nadir scans were shifted by 2 degrees LOS to the left (asymmetric w.r.t. the ENVISAT ground track).
2003 04/04/2003 14:12 05/04/2003 20:23 5718 5736 NNDEC. Measurements continued throughout the decontamination period. Data are of degraded quality. Cool down phase up to orbit 5766, spoiled by an instrument anomaly.
2003 07/04/2003 18:24 08/04/2003 09:35 5765 5772 HSM anomalies
2003 30/04/2003 6091 6109   OCR 003 - Additional in-flight measurement of channel 8 non-linearity for accurate calibration
2003 15/05/2003 - 6301 - TC adjustment. SOR 03.
2003 18/05/2003 06:53 21/05/2003 01:08 6344 6383 SCIAMACHY out of measurement mode for out-of-plane OCM PMC software patch
2003 21/05/2003 02:46 23/05/2003 15:07 6384 6420 NNDEC. Measurements continued throughout the decontamination period. Data are of degraded quality. Cool down phase up to orbit 6449.
2003 13/07/2003   7151   OCR 010 - Perform WLS over diffuser measurements (state 70, meas.cat. 19) in eclipse only
2003 24/07/2003 16:46 28/07/2003 12:15 7309 7363 SCIAMACHY transferred to HTR/RF for repeated fault OOL of parameter 0260. Probably caused by SEU while passing the South Atlantic Anomaly
2003 01/08/2003 - 7417 - TC adjustment. SOR 08.
2003 12/08/2003 06:00 27/08/2003 21:36 7574 7798 NNDEC. Total planned warm-up time was 375 hr (i.e. 15 days) but due to HTR/RF the heating was slightly reduced. Measurements continued throughout the decontamination period. Data are of degraded quality. Cool down phase up to orbit 7827.
2003 16/08/2003 07:44 18/08/2003 12:57 7633 7664 SCIAMACHY transferred to HTR/RF following a Science Data Processing Unit (SDPU) Current Mode ID OOLcaused by incorrect parameter setting in the onboard State Duration table
2003 04/09/2003 22:53 07/09/2003 17:58 7914 7953 SCIAMACHY out of measurement mode: PLSOL caused by onboard anomaly
2003 22/10/2003   8591   TC adjustment. SOR 10.
2003 28/10/2003 02:55 28/10/2003 18:20 8676 8683 SCIAMACHY out of measurement mode for out-of-plane OCM & Central Communication Unit (CCU) Flight Software patch
2003 03/12/2003 07:18 06/12/2003 12:37 9193 9239 SCIAMACHY out of measurement mode: Payload switch-off
2003 05/12/2003   9227   TC adjustment. SOR 12.
2003 09/12/2003 10/12/2003     In the course of testing new S/W to improve state vector uploads, the attitude mode of the ENVISAT platform was changed from nominal Stellar Yaw Steering Mode (SYSM) to Yaw Steering Mode (YSM) with reduced pointing performance.
2003 18/12/2003 07:30 03/01/2004 20:53 9407 9644 NNDEC. Measurements continue throughout the decontamination period. Data are of degraded quality. Cool down phase up to orbit 9673, interleaved with transfer to HTR/RF
2003 18/12/2003 15:42 19/12/2003 15:24 9412 9426 SCIAMACHY transferred to HTR/RF for MDI Process Alive Alarm during non-nominal decontamination
2003 20/12/2003 12:34 23/12/2003, 13:18 9439 9482 SCIAMACHY transferred to HTR/RF for PMTC Tx buffer overflow
2004 05/01/2004 10:19 06/01/2004 16:23 9667 9685 SCIAMACHY transferred to R/W WAIT for MCMD CCA check error.
2004 19/01/2004 09:52 20/01/2004 12:34 9867 9883 SCIAMACHY transferred to HTR/RF for SDPU Tx buffer overflow
2004 30/01/2004   10023   TC adjustment. SOR 13.
2004 04/02/2004 02:40 04/02/2004 13:15 10091 10098 SCIAMACHY out of measurement mode for OCM
2004 16/03/2004   10681   TC adjustment. SOR 14.
2004 22/03/2004 23/03/2004 10767 10783 OCR 014 - Limb measurements executed with higher vertical sampling (1.5 km instead of nominal 3 km) maintaining the number of steps. Start altitude lifted from -3 km to about 10 km.
2004 24/03/2004 25/03/2004 10797 10810 OCR 014 - Limb measurements executed with higher vertical sampling (1.5 km instead of nominal 3 km) maintaining the number of steps. Start altitude remained at -3 km.
2004 01/04/2004   10909   TC adjustment. SOR 15.
2004 14/04/2004 02:40 14/04/2004 13:55 11094 11100 SCIAMACHY out of measurement mode for OCM
2004 19/04/2004   11168 11172 OCR 016 - Venus transit observations
2004 03/05/2004   11368   TC adjustment. SOR 16.
2004 08/05/2004 21:52 10/05/2004 11:55 11449 11471 transfer to HTR/RF for I6275 OOL
2004 08/06/2004   11880 11889 OCR 016 - Observation of Venus transit
2004 18/06/2004 14:46 28/06/2004 14:32 12031 12174 NNDEC. Measurements continued throughout the decontamination period. Data are of degraded quality. Cool down phase up to orbit 12208.
2004 21/06/2004 07:56 22/06/2004 11:50 12070 12087 Platform pointing anomaly for Star Tracker 3 malfunctions. ENVISAT operated in YSM instead of nominalSYSM. SCIAMACHY measurements as planned. Data obtained in that period can be of reduced quality.
2004 05/07/2004 05:52 06/07/2004 10:22 12269 12286 SCIAMACHY transferred to R/W WAIT for MCMD CCA check error
2004 10/08/2004   12782 12795 OCR 013 - Vertical azimuth alignment in limb geometry. Test nadir and limb states with small swath width
2004 01/09/2004 23:52   13110   In-plane OCM without idle phase. Emergency collision avoidance triggered by a 'high risk conjunction event prediction' for a Russian Cosmos satellite. In order to original orbit, a second manoeuvre occurred in orbit 13125 (03/09/2004 00:44 UTC).
2004 21/09/2004 02:17 21/09/2004 18:32 13384 13393 SCIAMACHY out of measurement mode for OCM
2004 22/09/2004 22:59 24/09/2004 08:34 13410 13430 SCIAMACHY transferred to HTR/RF for ESM overcurrent for parameter I0121OOL .
2004 01/10/2004 00:24 02/10/2004 11:05 13526 13546 SCIAMACHY transferred to R/W WAIT for MCMD CCA check error
2004 17/11/2004 00:10 18/11/2004 07:12 14198 14217 SCIAMACHY transferred to HTR/RF for Latch-up thermal board due to an OOLfor parameter I0105
2004 17/12/2004 - 14630 - TC adjustment for detector 5. SOR 20
2004 20/12/2004 08:05 02/01/2005 06:16 14675 14860 NNDEC. Cool down phase up to orbit 14912. New approach to mimic instrument operations in Jan 2004 with good throughput recovery in detectors 7 & 8. Start of cool-down in orbit 14882 with a period of 8.5 hours in STANDBY and transfer back to HEATER and MEASUREMENT finally reached in orbit 14898.
2005 03/01/2005 19:10 04/01/2005 20:44 14882 14898 SCIAMACHY transferred to STANDBY for post-decontamination activities
2005 07/01/2005 03:00 07/01/2005 13:00 14930 14936 SCIAMACHY out of measurement mode for OCM
2005 12/01/2005 13/01/2005 15002 15015 OCR 013 - Vertical azimuth alignment in limb geometry. Test nadir and limb states with small swath width
2005 15/01/2005   15054   OCR 021 - Improvement of limb/nadir matching for subsolar orbits
2005 22/01/2005       Due to a hardware problem in the ESRIN acquisition chain, PDHS-E products were of bad quality or missing. On-site intervention performed on 02-Feb-2005. Since then until the evening of 4th of February the data acquired on the Low Rate (LR) chain was generally of nominal quality. After that date the LR demodulator failed again, thus there has been no low rate acquisition until the 7th of February. Since then all acquired data were again of nominal quality.
2005 29/01/2005 23/02/2005 15244 15602 OCR 22 - Vertical sampling of 1.6 km during TROCCINOX-2 campaign. Limb states ID 32 were executed with reduced vertical step between geographic latitudes 30N and 60S. All other limb states maintained step width of 3.3 km.
2005 17/03/2005 01:00 17/03/2005 13:00 15916 15924 SCIAMACHY out of measurement mode for OCM
2005 05/04/2005 - 16191 - TC adjustment for detector 5. SOR 21. Detector 5 was close to its upper temperature limit of 222.4 K
2005 08/05/2005 30/06/2005 16667 17425 OCR 023 - Improve nadir coverage for the Cabauw validation campaign. For orbits crossing Cabauw (The Netherlands) the limb/nadir sequence of the timelines is selected such that maximum nadir coverage is obtained
2005 09/05/2005 00:25 09/05/2005 19:01 16675 16686 SCIAMACHY transferred to HTR/RF for Latch-up thermal board due to an OOLfor parameter I0105
2005 11/05/2005 22:11 13/05/2005 11:40 16716 16739 SCIAMACHY transferred to R/W WAIT for MCMD CCA Check Error
2005 07/09/2005 03:24 07/09/2005 14:37 18409 18415 SCIAMACHY out of measurement mode for OCM
2006 06/01/2006   20142   TC adjustment for detectors 4 and 5. SOR 22
2006 10/01/2006 00:54 10/01/2006 13:02 20196 20204 SCIAMACHY out of measurement mode for OCM . Due to the decreasing tank pressure, a modified strategy was implemented. Longer OCMs are required. Thus it is no longer possible to execute the manouevre completely in eclipse.
2006 05/02/2006 02:39 06/02/2006 09:05 20570 20588 SCIAMACHY transferred to R/W WAIT for MCMD CCA Check Error
2006 06/02/2006 12:56 07/02/2006 16:02 20590 20606 SCIAMACHY transferred to HTR/RF forPMTC Tx buffer overflow
2006 19/03/2006 15/04/2006 21170 21570 OCR 024 - improve limb and nadir coverage for the Sodankyla ozone campaign. For orbits crossing Sodankyla (Finland) the limb/nadir sequence of the timelines is selected such that maximum limb and nadir coverage is obtained.
2006 24/03/2006   21245   TC adjustment for detectors 4 and 5. SOR 23
2006 28/03/2006 00:25 28/03/2006 13:49 21298 21306 SCIAMACHY out of measurement mode for OCM
2006 06/04/2006 02:09 09/04/2006 14:42 21428 21479 Payload switch-off for SM DSL after memory reconfiguration due to SM On-Board Data Handling (OBDH) anomalies
2006 13/04/2006 10:51 14/04/2006 09:51 21534 21547 SCIAMACHY transferred to HTR/RF for SDPU Tx buffer overflow
2006 16/04/2006 23:08 20/04/2006 10:47 21584 21634 SCIAMACHY transferred to HTR/RF for SDPU Tx buffer overflow
2006 08/05/2006       Level 2 near real-time processing discontinued
2006 25/05/2006 17:56 27/05/2006 09:46 22139 22163 SCIAMACHY transferred to HTR/RF for SDPU Tx buffer overflow
2006 27/05/2006 16:05 28/05/2006 00:28 22167 22172 Transfer to MEASUREMENT IDLE as Mission Planning System (MPS) schedule was not correctly uplinked due to operator error
2006 28/05/2006 08:51 28/05/2006 15:33 22177 22181 Transfer to MEASUREMENT IDLE as MPS schedule was not correctly uplinked due to operator error
2006 03/07/2006 12:49   22594   Detector 3 ADC latch up was detected for 1 sec. Transient event attributed to SEU
2006 07/09/2006 16:40 11/09/2006 14:41 23641 23697 Payload switch-off due to Service Module ; Global Attitude and Orbit Control System (AOCS) Surveillance triggered - STD Deviation Anomaly
2006 13/09/2006 00:13 13/09/2006 13:37 23717 23725 SCIAMACHY out of measurement mode for OCM
2006 26/09/2006 12:24 01/10/2006 23916 23978 ENVISAT Ka-band antenna anomaly. The Ka-band Antenna Pointing Controller (APC), controlling communication with Artemis, was switched off due to an anomaly. All measurement data from orbits where ground link was scheduled to be via Artemis were lost. SCIAMACHY affected orbits are 23916-23921, 23930-23935, 23944-23949, 23959-23963 and 23973-23978. The Ka-band downlink remained non-operational until end of October. The Svalbard-Kiruna data acquisition scenario was temporarily implemented in order to assure full coverage
2006 01/10/2006   23978   OCR 026 - Increase number of subsolar pointing measurements
2006 01/10/2006   23978   OCR 027 - Reduction of subsolar rate to limit the activations of the Nadir Calibration Window Mechanism (NCWM) Life Limited Item (LLI) to cope with an extended mission
2006 23/11/2006 10:13 24/11/2006 11:01 24740 24754 SCIAMACHY transferred to HTR/RF for SDPU Tx buffer overflow
2006 28/11/2006 07:58 30/11/2006 16:41 24810 24844 SCIAMACHY out of measurement mode for Planned SM Memory Maintenance
2006 12/12/2006 18:02 16/12/2006 16:38 25016 25073 Payload switch-off due to a Level 3 protocol error and interruption.
2007 23/01/2007   25611   TC adjustment. SOR 25
2007 22/01/2007 23:33 23/01/2007 12:57 25607 25614 SCIAMACHY out of measurement mode for OCM
2007 22/03/2007   26441   TC adjustment. SOR 26
2007 02/04/2007 23:51 03/04/2007 11:39 26609 26616 SCIAMACHY out of measurement mode for OCM
2007 17/04/2007 18/04/2007 26812 26819 OCR 029 - investigation of extra misalignment in pitch, roll and yaw. Special states with sun acquisition above the atmosphere, both for ESM and ASM .
2007 26826 26833
2007 02/05/2007   27027   TC adjustment. SOR 27.
2007 21/05/2007 02:27 21/05/2007 05:52 27297 27299 SCIAMACHY transferred to MEASUREMENT IDLE 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 30/05/2007 19/06/2007 27436 27722 Sub-solar measurements produced no useful data for partial obscuration of LoS due to the critical Ka-band antenna parking position selected after APC failure in September 2006 and February 2007 (KBS1 TWTA Helix Current). Impact for about 2-3 weeks end of May/early June when Sun reaches highest elevation in the sub-solar window.
2007 29/06/2007 03:07 30/06/2007 07:27 27856 27873 SCIAMACHY transferred to HTR/RF for SDPU Tx buffer overflow
2007 16/07/2007 22:05 17/07/2007 11:35 28111 28119 SCIAMACHY out of measurement mode for OCM
2007 30/07/2007 31/07/2007 28304 28325 OCR 030 -Test of limb mesosphere-thermosphere state. Altitude range of the limb scans shifted upwards. Postponed for instrument anomaly
2007 30/07/2007 09:50 31/07/2007 10:23 28304 28318 SCIAMACHY transferred to HTR/RF for SPDU/SDPC error. Anomaly caused by a parameter mismatch (conflict between PET/co-adding settings and duration of horizontal limb scans) as a result of OCR 030.
2007 08/08/2007 09/08/2007 28433 28454 OCR 030 - Successfully executed
2007 11/09/2007   28917 28920 OCR 031 - First part - Characterization of spatial stray light in limb measurement mode.
2007 24/09/2007 12:27 28/09/2007 13:28 29107 29165 Payload switch-off due to SM Anomaly (Global AOCS Surveillance triggered). Few hours before planned OCM and SMmaintenance
2007 01/12/2007 06:10 03/12/2007 22:00 30076   SCIAMACHY transferred to STB/RF due to PMTC Tx buffer overflow & PMTCdriver timeout. Recovery aborted for planned OCM for SM maintenance
2007 03/12/2007 22:00 05/12/2007 08:02   30136 SCIAMACHY out of measurement mode for OCM & Maintenance
2007 13/12/2007 06:33 14/12/2007 09:22 30249 30264 SCIAMACHY out of measurement mode due to planned SM maintenance & ENVI-OpsReq-500/2007.
2008 03/01/2008 - 30550 - TC adjustment for detectors 4 and 5. SOR 28.
2008 16/01/2008 16:11 17/01/2008 13:14 30741 30753 Due to an HSM anomaly no LR data was transmitted (including SCIAMACHY data). Back to operations after HSM reset.
2008 23/01/2008 24/01/2008 30836 30849 OCR 031 - Second part - Characterization of spatial stray light in limb measurement mode.
2008 11/02/2008 23:40 12/02/2008 12:55 31118 31125 SCIAMACHY out of measurement mode for OCM
2008 13/03/2008 09:33 13/03/2008 19:28 31553 31559 Platform pointing anomaly for Star Tracker 3 malfunctions. ENVISAT operated in YSM instead of nominal SYSM caused by a bright object in FoV. SCIAMACHY measurements as planned with expected worsening of attitude.
2008 11/04/2008 - 31967 - TC adjustment. SOR 29.
2008 21/04/2008 23:40 22/04/2008 12:46 32120 32127 SCIAMACHY out of measurement mode for OCM
2008 20/04/2008 18/05/2008 32092 32493 OCR 035 - Cluster 16 and 18 short integration times. Co-adding factors modified
2008 26/05/2008 30/06/2008 32607 33122 OCR 034 - Improved limb coverage for the Teresina balloon campaign
2008 30/06/2008 22:09 01/07/2008 12:42 33121 33129 SCIAMACHY out of measurement mode for OCM
2008 26/07/2008   33481 33493 OCR 036 - Upper atmosphere (UA) states are scheduled coinciding with MIPAS operating in UA mode.Standard limb states replaced by the new limb_mesosphere_thermosphere state.
2008 22/08/2008 06:43 23/08/2008 16:42 33870 33890 SCIAMACHY transferred to STB for SDPU HK data timeout & SDPU Tx buffer overflow
2008 08/09/2008 22:05 09/09/200811:39 34123 34131 SCIAMACHY out of measurement mode for OCM Planned payload maintenance
2008 24/09/2008   34339 34353 OCR 036 - Upper atmosphere (UA) states are scheduled coinciding with MIPAS operating in UA mode.Standard limb states replaced by the new limb_mesosphere_thermosphere state.
2008 15/10/2008 - 34642 - ATC settings changed to account for the degradation of the ATC system. SOR 31.
2008 24/10/2008   34769 34783 OCR 036 - Upper atmosphere (UA) states are scheduled coinciding with MIPAS operating in UA mode.Standard limb states replaced by the new limb_mesosphere_thermosphere state.
2008 01/11/2008 19:58 02/11/2008 16:18 34894 34906 SCIAMACHY transferred to HTR/RF for latch-up I0105 OOL
2008 03/11/2008   34922   The new limb mesosphere thermosphere state, previously tested with OCR 036 became permanent. The new state scans the upper atmosphere from 150 km down to about 60 km. For 2 days per month, separated by about 15 days, all limb states in a timeline were replaced by the new UA scenario.
2008 17/11/2008 21:51 18/11/2008 11:47 35125 35133 SCIAMACHY out of measurement mode for OCM
2008 30/11/2008 01/12/2008 35311 35315 Ground Segment (GS) anomaly - missing data
2008 14/12/2008   35499 35505 OCR 038 - Full limb mode. Limb only measurements (wide swath settings) were executed on the dayside of the orbit.
2008 19/12/2008 08:20 03/01/2009 22:14 35574 35797 NNDEC. The cool down phase was interrupted in orbit 35820 (January 5th, 11:09 UTC) by a planned transfer to STANDBY, followed by a planned 'recovery' back to HEATER 8.5 hr later (orbit 35825, January 5th, 19:43 UTC).
2009 05/01/2009 11:09 06/01/2009 11:30 35819 35834 SCIAMACHY switched to standby for planned post decontamination activity.
2009 26/01/2009 23:32 27/01/2009 11:46 36129 36135 SCIAMACHY out of measurement mode for OCM
2009 15/02/2009 03:38 16/02/2009 13:09 36402 36422 Platform attitude anomaly for Star Tracker 3 malfunctions. ENVISAT operated in YSM instead SYSM caused by a bright object in FoV. SCIAMACHY measurements as planned with expected worsening of attitude
2009 04/03/2009 07:29 05/03/2009 11:38 36647 36664 SCIAMACHY transferred to STB for PMTC Tx buffer overflow & PMTC driver timeout
2009 05/03/2009 19:18 06/03/2009 15:10 36669 36681 Platform attitude anomaly for Star Tracker 3 malfunctions. ENVISAT operated in YSM instead of nominal SYSM. SCIAMACHY measurements as planned. Line-of-Sight pointing knowledge could be slightly disturbed.
2009 20/03/2009   36873 36876 OCR 037 - Observation of planet Venus
2009 06/04/2009 23:23 07/04/2009 12:32 37130 37137 SCIAMACHY out of measurement mode for OCM
2009 28/04/2009 29/04/2009 37439 37451 HSM full reset (recovery included HEATER mode)
2009 03/06/2009 21:55 05/06/2009 09:50 37959 37980 SCIAMACHY transferred to STB/RF for PMTC Tx buffer overflow & PMTC driver timeout
2009 15/06/009 22:20 17/06/2009 12:10 38131 38153 SCIAMACHY transferred to STB/RF for PMTC Tx buffer overflow & PMTC driver timeout
2009 21/06/2009 21:51 22/06/2010 21:17 38216 38230 SCIAMACHY transferred to HTR/RF for SDPU Tx buffer overflow
2009 25/06/2009   38261 38266 OCR 037 - Successful Venus observation
2009 08/06/2009 19/07/2009     OCR 040 - planning optimzed in support of Cabauw campaign (nadir small swath width for states over Cabauw).
2009 20/07/2009 22:00 21/07/2009 07:41 38632 38637 SCIAMACHY out of measurement mode for OCM
2009 09/08/2009 10:13 11/08/2009 08:23 38911 38938 SCIAMACHY transferred to HTR/RF for ASM mean motor current OOL ASMcontrol difference OOL & ESM overcurrent OOL . A triple OOL signature failure was not expected in the IOM.
2009 28/09/2009 22:07 29/09/2009 07:49 39634 39639 SCIAMACHY out of measurement mode for OCM
2009 27/10/2009 28/10/2009 40049 40053 GS anomaly - missing data
2009 18/11/2009 08:23 19/11/2010 11:12 40355 40371 SCIAMACHY transferred to R/W WAIT for MCMD CCA check error
2009 25/11/2009 26/11/2009 40464 40468 GS anomaly - missing data
2009 07/12/2009 21:52 08/12/2009 07:55 40636 40641 SCIAMACHY out of measurement mode for OCM
2010 11/01/2010 11:34 11/01/2010 19:05 41130 41135 Platform attitude anomaly for Star Tracker 3 malfunctions. ENVISAT operated in YSM instead of nominal SYSM. SCIAMACHY measurements as planned with expected worsening of attitude
2010 15/01/2010 09:31 16/01/2010 10:50 41186 41201 SCIAMACHY transferred to HTR/RF for PMTC Tx Buffer Overflow & PMTC driver timeout
2010 30/01/2010 22:21 01/02/2010 10:46 41409 41430 SCIAMACHY transferred to R/W WAIT for MCMD CCA Check error
2010 06/02/2010 07/02/2010 41510 41513 GS anomaly - missing data
2010 15/02/2010 21:49 16/02/2010 07:52 41638 41643 SCIAMACHY out of measurement mode for OCM
2010 21/02/2010 20:03 22/02/2010 14:45 41722 41733 SCIAMACHY transferred to HTR/RF for latch up I0105 OOL
2010 03/03/2010 22:12 05/03/2010 08:56 41867 41887 SCIAMACHY transferred to R/W WAIT for MCMD CCA Check error
2010 11/04/2010 11/04/2010 42413 42415 GS anomaly - missing data
2010 14/04/2010 11:46 15/04/2010 12:23 42462 42476 SCIAMACHY transferred to R/W WAIT for MCMD CCA Check error
2010 26/04/2010 22:02 27/04/2010 07:28 42640 42645 SCIAMACHY out of measurement mode for OCM
2010 26/05/2010 12:12 26/05/2010 16:45 43063 43066 Platform attitude anomaly for Star Tracker 3 malfunctions. ENVISAT operated in YSM instead of nominal SYSM. SCIAMACHY measurements as planned with expected worsening of attitude.
2010 16/06/2010   43362   Permanent implementation of OCR 043 for improved dark current PET coadding. Modified PET settings of the 5 dark current states.
2010 05/07/2010 23:50 06/07/2010 07:48 43643 43647 SCIAMACHY out of measurement mode for OCM
2010 09/08/2010 09:13 10/08/2010 07:43 44135 44148 SCIAMACHY transferred to HTR/RF for MDI Process Alive Status Alarm
2010 11/08/2010   44151   OCR 047 - phytoplankton observations in nadir states 6 and 7. The integration times for clusters 16 and 18 (channel 3) were shortened to obtain a higher spatial resolution by reducing the corresponding co-adding factors. To compensate, co-adding factors of other states were increased. Permanent implementation.
2010 23/08/2010 16:20 24/08/2010 11:12 44340 44351 SCIAMACHY transferred to HTR/RF for SDPU Tx Buffer Overflow
2010 25/08/2010 08:35 25/08/2010 15:21 44364 44367 SCIAMACHY transferred to MEASUREMENT IDLE due to MCMD scheduled not correctly uploaded.
2010 05/10/2010 13:20 06/10/2010 14:41 44953 44968 SCIAMACHY transferred to STB/RF for PMTC Tx Buffer Overflow & PMTC Driver Timeout.
2010 13/10/2010 13/10/2010 50309 50310 GS anomaly - missing data
2010 21/10/2010 23:34 27/10/2010 01:43 45188 45261 SCIAMACHY unavailable due to ENVISAT Orbit lowering manoeuvre for mission extension. The new orbit was achieved by a sequence of thruster firings on October 22nd, 26th and on November 2nd. The new orbit no longer maintained the inclination at specified value permitting drifting.
2010 24/10/2010 07:05   45222   End of ENVISAT Phase 2 operations after lowering into a modified orbit at reduced altitude. Start of extension phase
2010 27/10/2010 00:15   45261   OCR 048 - Configuring SCIAMACHY for modified orbit in mission extension phase. Control of SCIAMACHY's line-of-sight via the ASM and ESM scanners adjusted. In order to maintain limb/nadir matching, each limb state was shortened by one horizontal scan.
2010 27/10/2010 02/11/2010     ENVISAT operated in YSM instead of nominal SYSM. SCIAMACHY measurements as planned with a slight degradation of the line-of-sight performance.
2010 04/11/2010 05:38 05/11/2010 11:16 45379 45396 SCIAMACHY transferred to R/W WAIT for MCMD CCA Check Error
2010 20/11/2010 22:39 22/11/2010 12:35 45619 45641 SCIAMACHY transferred to R/W WAIT for MCMD CCA Check Error
2010 08/12/2010   45865   OCR 049 - Test for tangent height fine tuning
2011 10/01/2011   46340   OCR 050 - Tangent heights of states with limb viewing geometry modified with adjusted ESM Basic Scan Profile angle. Permanent implementation.
2011 22/03/2011 20:27 24/03/2011 11:17 47370 47393 SCIAMACHY transferred to STB/RF for PMTC Tx buffer overflow & PMTC driver timeout
2011 03/04/2011 15:51 05/04/2011 13:56 47540 47567 SCIAMACHY out of measurement mode for Payload switch-off due to SM Anomaly (IT1 CCU register access)
2011 05/05/2011   47994 47999 OCR 051 - Venus observation
2011 10/05/2011   48069 48074 OCR 051 - Jupiter observation
2011 26/05/2011 16:48 28/05/2011 08:08 48302 48325 SCIAMACHY transferred to STB/RF for PMTC Tx buffer overflow & PMTC driver timeout
2011 16/07/2011 15:45 19/07/2011 08:02 49034 49072 SCIAMACHY transferred to HTR/RF due to spurious PMTC dump mode OOLI0100
2011 26/08/2011 10:12 27/08/2011 08:27 49620 49633 SCIAMACHY transferred to HTR/RF for SDPU Tx Buffer Overflow
2011 08/09/2011 00:28 09/09/2011 09:42 49800 49820 SCIAMACHY transferred to HTR/RF for SDPU process alive alarms & PMTCmode. Never occurred before.
2011 22/09/2011 02:59 23/09/2011 09:30 50003 50021 SCIAMACHY transferred to HTR/RF for SDPU Tx Buffer Overflow
2011 14/10/2011 01:27 14/10/2011 09:53 50318 50323 In-plane OCM changing platform attitude with a transition from SYSM to YSM . For the entire manouevre SCIAMACHY continued the measurement plan. Due to the reduced platform attitude performance, LoS pointing knowledge is slightly degraded.
2012 01/01/2012       OCR 052 - implements increased rate of monitoring measurements to study the rapid throughput recovery. Daily subsolar observation in orbit 51463 and daily WLS on 09/01/2012 in orbit 51578.
2012 16/01/2012 03:27 17/01/2012 08:45 51670 51687 SCIAMACHY transferred to HTR/RF for SDPU Tx Buffer Overflow
2012 23/01/2012 06:45 24/01/2012 09:28 51772 51788 SCIAMACHY out of measurement mode for planned payload switch-off curing a SM Memory Fault
2012 22/02/2012 08:08 23/02/2012 09:25 52204 52219 SCIAMACHY transferred to HTR/RF for ASM overcurrent due to parameter I0111 OOL .
2012 29/02/2012 21:16 01/03/2012 06:47 52313 52318 SCIAMACHY out of measurement mode for OCM & planned payload maintenance
2012 08/04/2012 12:28   52868   SCIAMACHY out of measurement mode: No ENVISAT Telemetry and Telecommand on S-Band. Carrier visible but not modulated. No Ka-Band and X-Band data received. Carrier lost afterwards.
2012 09/05/2012       ESA officially declared the end of the operational phase for the ENVISAT mission