UNPLANNED SAFING/ANOMALY Status Page

A NOTE ABOUT SAFEMODE MESSAGES

Archived messages regarding safings and other significant events: HST Blog

Event #141: June 3, 2015 (2015.155) Payload Safing

• Safing Notification 15-06-04.
• Institute Notification 15-06-05.
• Instruments Recovering 15-06-05.
• Impacted Observations 15-06-06.

Event #140: October 20, 2014 (2014.084) SIC&DH CU/SDF Lockup

• Lockup Notification 14-10-20.
• Potentially affected visits over the coming days ... 14-10-20.
• Confirming indications of CU/SDF lockup ... 14-10-20.
• S/C & Payload Status as of midnight ... 14-10-21.
• Impact statement." 14-10-22

Event #139: March 26, 2014 (2014.084) COS Suspend

• COS suspend Notification 14-03-26.
• Details from Bacinski 14-03-26
• Preliminary timeline of concern 14-03-26
• Decision to recover 14-03-27
• Update on Recovery 14-03-27
• COS fully recovered 14-03-27
• Expected impact to observations 14-03-27

Event #138: March 7, 2014 (2014.066) KFSP Safe Mode: Apparent Loss of Gyro 5

• Safing Notification 14-03-07.
• Instrument states 14-03-07.
• Pre-safing Timeline circum-execution and afterward 14-03-07.
• Forward plan. 14-03-07
• Visits which failed or were removed from the timeline. 14-03-11

Event #137: February 15, 2013 (2013.046) SWSP Safe Mode: SA Command Profile Test Failure

• Safing Notification 13-02-15.
• Status Briefing 2013-02-15.
• Sembach update: SADE-2R issue. 2013-02-15.
• Testing Forward Plan. 2013-02-15.
• Second Round of Testing Results. 2013-02-16.
• HST returns to operations. 2013-02-20.
• Impact of safing on visits. 2013-02-21.

Event #136: December 22, 2012 (2012.358) Safe Mode -- Solar Array Commanding Anomaly:

• Safing Notification 12-12-22.
• Sembach summary 12-12-23.
• Heath and Safety Start 12-12-23.
• Preliminary impact analysis 12-12-23.
• SA slew-dump analysis 12-12-23.
• Instrument recovery schedules 12-12-24.

Event #135: June 27, 2012 (2012.179) ACS Suspend:

• ACS MEB 12-06-27.
• Dunham's notes. 12-06-27.
• Jenkner's summary. 12-06-27.
• Visits impacted by the ACS Suspend. 12-06-27

Event #134: June 2, 2012 (2012.154) SI C&DH Hang:

• SI C&DH Hang 12-06-04.
• Visits lost due to the hang. 12-06-04.

Event #133: April 30, 2012 (2012.121) COS Suspend:

• COS Instrument Suspension 12-04-30.
• COS DIB dump delay 12-04-30.
• Situational Awareness System (SAS) entries12-04-30.
• COS placed in safemode pending analysis.12-05-01.
• COS visits removed from 12.121 calendar.12-05-02.
• COS visits which are presumed to have failed.12-05-02.
• COS visits from 12.121, 12.128, and 12.135 impacted.12-05-03.
• Non-COS visits displaced from the 12.128 calendar due to the rebuild.
• Recovery plan as of Thursday, May 3rd.12-05-03.
• COS Status.12-06-15.

Event #132: December 24, 2011 (2011.358) MA2 Coherement Mode Anomaly:

• MA2 Coherement Mode Anomaly. 11-12-24.
• Status. Investigation continues.11-12-27.
• No science data is lost due to this anomaly, however, FDF tracking engineering data is no longer available by this method until and unless the problem is resolved.

Event #131: December 1, 2011 (2011.335) SSR 3 Anomaly:

• SSR 3 lockup alert. 11-12-01.
• Lost Visits. 11-12-01.
• Further information. 11-12-01.
• SSR3 resumes operation. 11-12-02.

Event #130: September 27, 2011 (2011.270) SIC&DH Lockup:

• SIC&DH Lockup alert. 11-09-27.
• Affected mains. 11-09-27.
• Anomaly recovery plan. 11-09-27.
• Expected Impact at 2011-09-27/18:00:00.
• FOT recovers payload. 11-09-27.
• Return to Science SMS. 11-09-28.

Event #129: September 13, 2011 (2011.256) SSR 1 Latch Up:

• SSR 1 Anomaly alert. 11-09-13.
• SSR 1 recovered. 11-09-13.
• No data was lost from this anomaly.

Event #128: September, 7, 2011 (2011.250) Gyro 4 Motor Restriction Event:

• Gyro 4 Motor Current Restriction. 11-09-07.
• OBAD & Autonomous recovery. 11-09-07.
• No data was lost from this anomaly.

Event #127: March 16-31, 2011 (2011.077) Gyro Swap 6-on/3-off:

• Gyro 6 turned on. 11-03-16.
• Gyro 6-4-5 reconfiguration. 11-03-18.
• Gyro 3 turned off. 11-03-31.
• Note: This event is not an unplanned interruption. The 6-for-3 Gyro swap has been in the planning stage for months. It is captured here because it concerns a significant anomaly.

Event #126: October 4, 2010 (2010.277) CUSDF & SI Data loss:

• Notification of SI data loss. 10-10-04.
• Plan for recovery. 10-10-04.
• Potentially affected. 10-10-04.
• Schedulabiltiy evaluation of affected 'main' visits. 10-10-07.

Event #125: September 30, 2010 (2010.273) ACS Suspend:

• ACS Suspend notification. 2010-09-30
• ACS Recovery notification. 2010-09-30
• Affected Visits. 2010-10-04

Event #124: September 9, 2010 (2010.252) SIC&DH Lockup:

• SIC&DH Lockup notification. 2010-09-09.
• Recovery Plans.2010-09-09.
• Recovery Approval Plans.2010-09-09.
• Payload Recovery aborted.2010-09-10.
• List of Visits potentially affected by the SIC&DH Lockup.2010-09-10.
• Instrument states, Friday 12:45pm EDT2010-10-08.
• STScI SMS Recovery Processing Plan2010-10-08.
• All payload instruments recovered, Friday 21:06pm EDT2010-10-08.
• Intercept SMS delivered.2010-10-08.
• Ready for NSSC cold-start and return-to-science, Saturday 13:09pm EDT2010-10-08.
• Return to Science successful, Saturday 9:38pm EDT2010-10-08.
• HST status, Sunday 09:20am EDT2010-10-08.
• Safing Impact to Science Evaluation.2010-10-08.

Event #123: May 4, 2010 (2010.124) STIS MAMA1 HV Rampup problem:

• STIS MAMA1 down to Operate. 10-05-05.
• Visits that may potentially be affected by the safing.10-05-05.

Event #122: March 21, 2010 (2010.080) COS FUV Overlight:

• COS in Boot mode. 10-03-22.
• COS FUV overlight 10-03-22.
• COS restarted, observations resuming. 10-03-22.

Event #121: October 22, 2009 (2009.295) SIC&DH PIT Toggle Failure:

• PIT Toggle failure 09-10-22..
• Potentially Impacted Visits, pending new information. 09-10-22
• Meeting to discuss SIC&DH lockup. 09-10-22.
• Follow-up and additional info. 09-10-22.
• Lockup report from Tom Wheeler. 09-10-22.
• Anomaly status briefing. 09-10-22.
• General update by K. Sembach 09-10-22.
• SIC&DH recovered 09-10-22.

Event #120: July 28, 2009 (2009.209) NCS Safing:

• NCS Safing 09-07-28.
• Update 09-07-28.

Event #119: July 17, 2009 (2009.198) NCS Safing:

• NCS Safing 09-07-18.
• NCS restart attempts postponed. 09-07-18

Event #118: July 09, 2009 (2009.190) STIS Suspend (while dumping MIE):

• STIS Suspend 09-07-09.

Event #117: July 06, 2009 (2009.187) STIS Suspend:

• STIS Suspend 09-07-06.

Event #116: June 23, 2009 (2009.174) ACS Suspend:

• ACS Suspend 09-06-23.
• ACS Suspend Notice. 09-06-23.
• ACS Review 09-06-23.

Event #115: June 23, 2009 (2009.174) COS Slow Suspend:

• COS Suspend 09-06-23.
• Recovery 09-06-23.

Event #114: June 19, 2009 (2009.170) WFC3 Temperature Limit Violation: WFC3 Safed:

• Temperature Limit Violation 09-06-19.
• Recovery 09-06-19.

Event #113: June 15, 2009 (2008.354) SI C&DH Anomaly: PIT Toggle Test Failed:

• SI C&DH Safing 09-06-15.
• Power Cycling 09-06-15.
• Status as of June 19th 09-06-19.

• SM4, May 2009 (Atlantis, STS-125)
  • WFC3 installed.
  • COS installed.
  • ACS WFC repair.
  • STIS repair.
  • FGS2RR installed.
  • All 6 gyros replaced (3 RSU modules).
  • Both battery modules replaced.
  • New NOBLs for Bays 7, 8, and 5.
  • Backup SIC & DH unit replaces original.
  • Soft-capture mechanism installed.
  • New Aft-shroud door locks installed.

Event #112: December 19, 2008 (2008.354) NCS Safing:

• NCS Safing 08-12-19.

Event #111: October 15, 2008 (2008.290) Payload Safing: SIC&DH A-side Failure:

• Initial note from Pat Coleman. 08-10-16.
• HST status. 08-10-16.

Event #110: October 15, 2008 (2008.290) ACS Safing:

• Initial notification. 08-10-16.
• HST status. 08-10-16. 08-10-16.

Event #109: September 27, 2008 (2008.270) NSSC & Payload Safing:

• Initial note from I. Dashevsky. 08-09-27.
• Attempt to toggle the unit failed. 08-09-28.
• Update on the NSSC safing. 08-09-28.
• Visits affected by the NSSC & Payload safing on the 08.266. 08-09-28.
• Possible victims affected by the NSSC & Payload safing on the 08273. 08-09-28.

Event #108: September 11, 2008 (2008.255) NICMOS Cryocooler Safing:

• Initial note from Chris Long. 08-09-11.
• Potential Casualty Visits. 08-09-11.
• NICMOS intentionally safed. 08-09-12.
• Sunday's NCC restart failed. 08-09-14.
• Monday afternoon's NCC restart failed. 08-09-15.
• Status update from Doxsey. 08-09-15.
• Monday evening's NCC restart failed. 08-09-15.
• Furter attempts at NCCS recovery suspended until post-SM4. 08-09-16.

Event #107: September 10, 2008 (2008.254) WFPC2 Safing:

• Initial note from Chris Long. 08-09-10.
• Possible Causes. 08-09-11.
• Potential Casualty Visits. 08-09-11.
• WFPC2 Status and recovery plans 08-09-15.
• WFPC2 Recovery. 08-09-16.

Event #106: July 9, 2008 (2008.191) NICMOS Suspend: FW#2:

• Initial note from Ilana Dashevsky 08-07-09.
• NICMOS Recovery 08-07-09.
• Potentially affected NICMOS Science 08-07-09.

Event #105: June 30, 2008 (2008.182) NICMOS Suspend: FW#2:

• Initial note from Tom Wheeler 08-07-14.
• Update 08-07-14.
• NICMOS Recovery 08-07-14.
• Potentially affected NICMOS Science 08-07-14.

Event #104: March 8, 2008 (2008.069) NICMOS Suspend: FW#2:

• Initial note from Tom Wheeler 08-03-08.
• Update 08-03-08.
• NICMOS Recovery 08-03-09.
• Potentially affected NICMOS Science 08-03-10.

Event #103: September 2, 2007 (2007.245) NICMOS Safing:

• Initial note from Tom Wheeler 07-08-31
• NICMOS recovery plans 07-09-01
• NICMOS Recovery 07-09-01

Event #103: August 31, 2007 (2007.243) Zero Gyro: Gyro 2 failure:

• Initial note from Tom Wheeler 07-08-31
• Gyro 2 failure 07-09-01
• Recovery Status. 07-09-01

Event #102: June 7, 2007 (2007.158) NICMOS Suspend:

• Initial note from Tom Wheeler 07-06-07
• Call in notice. 07-06-07
• NICMOS unsuspended. 07-06-07

Event #101: January 27, 2007 (2007.027) Inertial hold. ACS Side-2 Electronics Failure:

• Initial note from Rodger 01-28-07
• HST in inertial hold 01-29-07
• Health & Safety Load planned 01-29-07
• ACS side-2 failure 01-29-07
• NCS restart 01-29-07
• Note from the director 01-29-07

Event #100: September 22, 2006 (2006.266) ACS Suspend:

• ACS Suspends 09-23-06
• Status Briefing email 09-24-06
• K. Sembach's summary of ACS Status following the suspend. 09-25-06
• Visits lost due to the suspend. 09-26-06
• Status update 06-09-27 09-28-06
• Status update 06-09-29 10-02-06
• ACS WFC recovered. 10-02-06
• ACS HRC recovered. 10-10-06
• K. Sembach's HRC summary 10-10-06
• ACS HRC return to science 06-10-16

Event #99: June 19, 2006 (2006.170) ACS Suspend. ACS Side-1 Electronics Failure:

• ACS Suspends 06-19-06
• First update 06-20-06
• Preparations for switch to side 2 06-22-06
• Update 06-27-06
• Plans for the switch to side 2 06-29-06
• Switch to side-2 06-29-06
• ACS WFC recovered 07-04-06
• visits lost to the suspend 07-04-06

Event #98: June 13, 2006 (2006.164) Zero Gyro (Mag Field check failed):

• Zero Gyro (Mag Field check failed) 06-13-06
• getsus on toasted mains 06-13-06
• ZGSP Flash Report 06-13-06
• recovery status 06-14-06

Event #97: April 17, 2006 (2006.107) BEA/MA Avoidance Check failure:

• Inertial Hold (BEA/Moon avoidance failure) 04-17-06
• Recovery Plans 04-17-06
• HST recovered 04-18-06
• More details. 04-19-06

Event #96: March 18, 2006 (2006.077) ACS Suspend:

• Initial ACS suspend notice 03-18-06
• Ops Briefing notice 03-18-06
• Flash Update 03-18-06
• Recovery Notice 03-19-06
• SEU in the FIFO 03-19-06
• Visits hit by the suspend 03-19-06
• Back to normal. 03-19-06
• Anomaly Report 04-12-06

Event #95: April 10, 2005 (2005.100) NICMOS Suspend:

• Suspend Notice 04-11-05
• Recovery Notice 04-11-05
• Recovery Notice 2 04-11-05
• Impacted Observations 04-11-05

Event #94: March 21, 2005 (2005.080) NICMOS Buffer Messages:

• Original Msgs. 03-21-05
• Potentially affected observation. 03-21-05

Event #93: March 12, 2005 (2005.071) ACS HV Shutdown:

• HV Shutdown. 03-14-05
• Followup. 03-15-05
• More. 03-16-05

Event #92: December 28, 2004 (2004.363) ACS Suspend:

• Suspend Notice. 12-28-04
• Further info. 12-28-04
• Recovery plans. 12-29-04
• More info. 12-29-04
• Impacted Observations. 12-29-04

Event #91: October 18, 2004 (2004.292) NICMOS Suspend:

• Suspend Notice. 10-18-04
• Potentially Impacted Observations. 10-18-04

Event #90: August 3, 2004 (2004.216) STIS Suspend. Side-2 Electronics failure:

• Suspend Notice. 08-03-04
• Potentially Impacted Observations. 08-03-04
• Update: Good night sleep for STIS. 08-03-04
• Intra-instrument comm error. 08-03-04

Event #89: July 6, 2004 (2004.188) Zero Gyro Safe Mode:

• Safing Notice. 07-06-04
• Update. 07-07-04
• Lost Observations. 07-08-04

Event #88: March 9, 2004 (2004.069) NICMOS Suspend:

• Suspension Notice. 03-09-04
• Initial recovery plans 03-09-04
• Lost Observations 03-09-04

Event #87: March 3, 2004 (2004.063) NICMOS Suspend:

• Safing Notice. 03-03-04
• Recovery 03-03-04
• Lost Observations 03-03-04

Event #86: January 6, 2004 (2004.006) NICMOS Suspend:

• Safing Notice. 01-06-04
• Initial recovery plans 01-06-04
• Lost Observations 01-06-04
• Recovery Message 01-07-04
• Recovery Message2 01-07-04

Event #85: August 2, 2003 (2003.214) NCS Safing: Circulator voltage out of limit:

• Safing Notice. 08-02-03
• Initial Update: NICMOS taken to safe state pending NCS restart & cooldown. 08-03-03
• Impact Update. 08-04-03
• Roadmap Update. 08-04-03
• NCS recovery plans. 08-06-03
• NCS safing details. 08-07-03
• Go for NCS restart. 08-07-03
• NCS successfully restarted. 08-07-03

Event #84: April 29, 2003 (2003.119) Gyro 3 Stall: HST in Zero Gyro. Gyro 3 restart failure:

• Safing Notice.
• Initial Update.
• Gyro Update.
• H&S Update.
• Recovery Message.
• Casualties.

Event #83: April 13, 2003 (2003.103) Gyro 3 Stall: HST in Zero Gyro:

• Safing Notice.
• Initial Update.
• H&S Update.
• Casualties.

Event #82: February 7, 2003 (2003.038) NICMOS Suspend:

• Suspend and Recovery Notice.
• Followup and Casualty.

Event #81: January 23, 2003 (2003.023) Spacecraft Inertial Hold:

• Safing Notice.
• Initial Update.
• Lost Data.
• Potentially Impacted Observations.
• Final List of Impacted Observations.

Event #80: November 28, 2002 (2002.332) Zero Gyro Safe Mode: Gyro 3 Overcurrent & Stall:

• Safing Notice.
• NICMOS instruction delivery.
• Recovery.
• Lost Observations.
• Full Impact of Safing.

• SM3B, March 2002 (Columbia, STS-109)
  • FOC removed.
  • ACS installed.
  • RWA-1 replaced.
  • NICMOS Cryo Cooler System installed.
  • SA3 installed & diode boxes replaced.
  • NOBL repair Bays 5 & 6 & 7 & 8.
  • Power Control Unit replaced.

Event #79: November 29, 2001 (2001.333) STIS Safing:

• Safing Notice
• Recovery1
• Recovery2
• Lost Observations

Event #78: May 16, 2001 (2001.136) STIS Safing. Side-1 Electronics Failure:

• Safing Notice
• Update1
• Update2
• Update3
• Update4
• Failure Analysis
• Tin Whiskers References
• Recovery1
• Recovery2
• Recovery Schedule
• Final Recovery
• Lost Observations (initial)

Event #77: April 28, 2001 (2001.118) Gyro 5 Stall: HST in Zero Gyro Safemode, Gyro 5 Failure:

• Safing Notice
• Recovery
• Update1
• Lost Observations

Event #76: March 5, 2001 (2001.064) Software Sunpoint Safe Mode: Magnetic Torquing Bar:

• Safing Notice
• Update1
• Update2
• Recovery
• Lost Observations

Event #75: January 3, 2001 (2001.003) Sunpoint Safe Mode: SADE 2R:

• Safing Notice
• Update1
• Update2
• Recovery
• Lost Observations

Event #74: November 1, 2000 (2000.305) WFPC Safing. Shutter :

• Safing Notice
• Options for Attempt to Fix WFPC2 Shutter Mechanism
• Initial Impact Estimates
• Update1

Event #73: October 2, 2000 (2000.276) WFPC Safing :

• Safing Notice
• Update1
• Initial Impact Estimates
• Actual Lost observations

Event #72: August 5, 2000 (2000.218) HST in PSEA Sunpoint Safemode :

• Safing Notice
• Update1
• Lost observations

• SM3A, December 1999 (Discovery, STS-103)
  • All gyroscopes replaced.
  • FGS2 replaced with FGS2R
  • x86 computer installed.
  • VIK installed
  • Bay 1 NOBL
  • MLI repair Bays 5, 6, 7, 8, 9, 10.
  • Failed S-band SAT replaced.
  • STR-2 (3?) replaced with SSR

Event #71: November 13, 1999 (1999.317) HST in Zero Gyro Safemode :

• Suspend Notice
• Update1
• Background
• Recovery
• Lost observations

Event #70: September 20, 1999 (1999.263) STIS NUV MAMA HV Shutdown:

• Suspend Notice
• Recovery
• Lost observations

Event #69: May 7, 1999 (1999.127) HST in Inertial Hold Safemode:

• Safing Notice
• Recovery
• Lost observations

Event #68: February 24, 1999 (1999.055) HST in Inertial Hold Safemode:

• Safing Notice
• Recovery
• Lost observations

Event #67: December 15, 1998 (1998.348) NICMOS Suspend (no prime science lost!):

• Safing Notice
• Update
• Recovery
• Lost observations

Event #66: August 23, 1998 (1998.235) STIS Suspend (no prime orbits lost!):

• Safing Notice
• Update
• Update and recovery plans
• Recovery
• Lost observations

Event #65: August 17, 1998 (1998.229) Slow STIS Suspend, recover, and manual suspend:

• Safing Notice and recovery plans
• Lost observations

Event #64: May 18, 1998 (1998.138) Slow STIS Suspend:

• Safing Notice and recovery plans
• Lost observations

Event #63: May 9, 1998 (1998.129) NICMOS Safing then Suspend:

• Safing Notice and Recovery
• Suspend Notice
• Update
• Recovery
• Lost observations

Event #62: April 7, 1998 (1998.097) NICMOS Suspend:

• Safing Notice and recovery plans
• Lost observations

Event #61: March 26, 1998 (1998.085) STIS Suspend:

• Safing Notice
• Update and recovery plans
• Recovery for MAMA 2
• Lost observations

Event #60: March 16, 1998 (1998.075) NICMOS Suspend:

• Safing Notice and Recovery Plans
• Lost observations

Event #59: February 23, 1998 (1998.054) NICMOS Suspend:

• Safing Notice
• Update and recovery plans
• Lost observations

Event #58: January 17, 1998 (1998.017) NICMOS Suspend:

• Safing Notice
• Update and recovery plans
• Lost observations

Event #57: November 6, 1997 (1997.310) STIS Suspend:

• Safing Notice
• Update and recovery plans
• Lost observations

Event #56: October 27, 1997 (1997.300) STIS Suspend:

• Safing Notice
• Update and recovery plans
• Lost observations

Event #55: September 27, 1997 (1997.270) NICMOS Suspend:

• Safing Notice
• Update and recovery plans
• Lost observations

Event #54: April 9, 1997 (1997.099) HST Zero Gyro Safemode - Gyro 4 Failure:

(This is thought to be the first time we entered this safemode, other than a test of it.)

• Safing Notice
• Update and recovery plans
• Lost observations

Event #53: March 31, 1997 (1997.090) HST Software Sunpoint Safemode:

• Safing Notice
• Lost Observations - none!
• SADE Test - OK
• Recovery and test

• SM2, February 1997 (Discovery, STS-82)
  • FOS removed.
  • NICMOS installed.
  • GHRS removed.
  • STIS installed.
  • FGS1 replaced with FGS1R.
  • ESTR#2 replaced with SSR-2.
  • ESTR#1 replaced with SSR-1
  • Optics Control Electronics Enhancement Kit installed.
  • RWA-1 replaced.
  • DIU-2 replaced.
  • SADE-2 replaced.
  • MSS covers installed.

Event #52: February 6, 1997 (1997.037) HRS Safemode -End of GHRS observations:

• Safing Notice
• Daily report for 6 Feb 1997
• Final HRS report

Event #51: December 17, 1996 (1996.253) Hardware Sunpoint Safemode:

• Initial safing notice and morning report
• Lost observations
• Daily report 12/18

Event #50: December 14, 1996 (1996.349) RWA#1 (again):

• Initial safing notice
• Lost observations
• 12/16 morning report on recover status

Event #49: November 24, 1996 (1996.329) FOS Safing:

• Doxsey's 11/24 message on safing

Event #48: October 30, 1996 (1996.304) RWA#1 Software Sunpoint Safemode:

• Doxsey's 10/30 message on the safemode
• Initial Impact Caused by the Safeing
• Update message from Doxsey - 10/31
• MS OPS for Safemode Recovery
• PDB Values for Reaction Wheels
• 11/1 Recovery from Safing
• 11/3 Update message from Doxsey - 11/3
• 11/4 Update message from Doxsey - 11/4
• Unexecuted or failed visits from 96302 to 96309
• Initial LRP Recovery Plan - 11/11

Event #47: July 13, 1996 (1996.195) Safing Event:

Inertial hold safemode entered @ 1996.195 17H 13M UT. (Quaternion bit flip). First Health & Safety load (D01Z9360A) uplinked @ 196/12:41z. 2 more H&S loads to cover days 197 and 198. Resume science with 199.

• Daily report with notice of safemode
• Science Programs scheduled during safemode, Falloffs from 96.190-204
• Doxsey's 7/14 message on the safemode
• Notes for 7/15 OPM
• Daily Report #1674 07/15/96
• Doxsey's 7/15 message on the safemode
• 7/16 flash report (summarizes earlier info)
• 7/16 replan (another 24hrs H&S with science resuming on day 200)
• 7/17 morning report
• 7/17 morning report, science observations resume on day 200
• Further analysis of safing event
• PASSDEV analysis of problems with 1 STR usage

Potential Safing Event: August 16, 1995 (1995.228):

• 08/16/95 Possible Safing event 95/08/16:08.
• 08/16/95 Event update 95/08/16:10.
• 08/16/95 Another update 95/08/16:10+.

Potential Safing Event: April 17, 1995 (1995.107):

• FOS_GHRS Problem Description

Event #46: January 8, 1995 (1995.008) HST SADIE Safing Event:

• SMM Safing Notice
• Status 1/8/95
• Status 1/9/95
• Status 1/12/95
• Material Faxed from Goddard for the 1/9/95 8:30am meeting
• HST morning report covering safing and HST daily report covering safing
• Week 95.002 observations affected
• Week 95.009 observations affected
• Moving targets affected by SA restrictions
• Lifting of restrictions due to this event, in the 1995.107 SMS
• More information on the 1993 24 March (Pre-SM) SADE failure: Safing notice, Update, Another update, Discussion of issues, extending the range
• More information on the 1994 11 April SADE failure: Safing notice, update

Event #45: November 30, 1994 (1994.332) FOS Safing Event:

• FOS Safing Notice

  MOSES FOS Safing Notice

  FOS activities on the 94332 SMS

  94332 SU's for Rescheduling

Event #44: October 24, 1994 (1994.297) FOS Safing Event:

• FOS Safing Notice

  Chronology of FOS Safing Event

  Short-term Recovery Plans

  Info about Recovery (GIMP not on)

  FOS Blue Status as of 10/31/94

Past Safings Report (Events 1-43) as of 02-24-95

• SM1 December 1993 (Endeavour, STS-61)
  • HSP removed.
  • COSTAR installed.
  • WFPC replaced by WFPC2.
  • Four gyroscopes replaced (Gyro pairs 2 & 3).
  • Both gyro fuse plugs. (?)
  • ECU gyro pair 1 (?)
  • Two magnetometers replaced (MAG1 & MAG2).
  • SA1 replaced by SA2.
  • SADE-1 replaced.
  • Coprocessor FPU installed.
  • GHRS Power Supply redundancy kit installed.

• HST Deployed April 25, 1990 (Discovery, STS-31)