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July 2001
 
=============================================================================
DATE:01-July-2001
DOY: 182
OPERATIONS ENGINEER(S): B. Donaldson
SCIENTIST: T. Kucera
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:02-July-2001
DOY: 183
OPERATIONS ENGINEER(S): R. Yurow / C. Maroney
SCIENTIST: P. Bryan
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: 
  The command rate of the IWS software was reduced to 1/10 s to facilitate
  commanding on DSN-27.  After the science plan was loaded, the command rate
  was returned to its nominal value of 1/3 s.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:03-July-2001
DOY: 184
OPERATIONS ENGINEER(S): R. Yurow
SCIENTIST: P. Bryan
CDS INSTRUMENT: 
  BTM20 and BTM21 went into Yellow High alarm beginning at 15:00 UT.  Cause
  of the alarm was the EJECT_V5 study which uses the OPS motors to move 
  between two fixed pointings.
CDS GROUND SYSTEM: 
  The command rate of the IWS software was reduced to 1/12 s to facilitate
  commanding on DSN-27.  After the science plan was loaded, the command rate
  was returned to its nominal value of 1/3 s.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:04-July-2001
DOY: 185
OPERATIONS ENGINEER(S): C. Maroney
SCIENTIST: P. Bryan
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:05-July-2001
DOY: 186
OPERATIONS ENGINEER(S): R. Yurow / C. Maroney
SCIENTIST: P. Bryan
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:06-July-2001
DOY: 187
OPERATIONS ENGINEER(S): R. Yurow / C. Maroney
SCIENTIST: P. Bryan
CDS INSTRUMENT: 
  One run of FFCAL was completed at 19:15 UT.
  A mechanism lubrication study was completed at 17:05 UT
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:07-July-2001
DOY: 188
OPERATIONS ENGINEER(S): B. Donaldson
SCIENTIST: P. Bryan
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:08-July-2001
DOY: 189
OPERATIONS ENGINEER(S): B. Donaldson
SCIENTIST: P. Bryan
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:09-July-2001
DOY: 190
OPERATIONS ENGINEER(S): C. Maroney / R. Yurow
SCIENTIST: S. Bradshaw
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:10-July-2001
DOY: 191
OPERATIONS ENGINEER(S): C. Maroney / R. Yurow
SCIENTIST: S. Bradshaw
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM:
  The following studies were imported:
    arem_24_95.def
    arem_6.def.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:11-July-2001
DOY: 192
OPERATIONS ENGINEER(S): C. Maroney / R. Yurow
SCIENTIST: S. Bradshaw
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: 
  The command rate of the IWS software was reduced to 1/10 s to facilitate
  commanding on DSN-27.  After the science plan was loaded, the command rate
  was returned to its nominal value of 1/3 s.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:12-July-2001
DOY: 193
OPERATIONS ENGINEER(S): C. Maroney / R. Yurow
SCIENTIST: S. Bradshaw
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: 
  The command rate of the IWS software was reduced to 1/10 s to facilitate
  commanding on DSN-27.  After the science plan was loaded, the command rate
  was returned to its nominal value of 1/3 s.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:13-July-2001
DOY: 194
OPERATIONS ENGINEER(S): C. Maroney
SCIENTIST: S. Bradshaw
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: 
  The command rate of the IWS software was reduced to 1/10 s to facilitate
  commanding on DSN-27.  After the science plan was loaded, the command rate
  was returned to its nominal value of 1/3 s.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:14-July-2001
DOY: 195
OPERATIONS ENGINEER(S): B. Donaldson
SCIENTIST: S. Bradshaw
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:15-July-2001
DOY: 196
OPERATIONS ENGINEER(S): B. Donaldson
SCIENTIST: S. Bradshaw
CDS INSTRUMENT:
  A VDS Register A Failure was detected.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:16-July-2001
DOY: 197
OPERATIONS ENGINEER(S): C. Maroney / R. Yurow
SCIENTIST: K. Hori
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:17-July-2001
DOY: 198
OPERATIONS ENGINEER(S): C. Maroney / R. Yurow
SCIENTIST: K. Hori
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:18-July-2001
DOY: 199
OPERATIONS ENGINEER(S): C. Maroney / R. Yurow
SCIENTIST: K. Hori
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:19-July-2001
DOY: 200
OPERATIONS ENGINEER(S): C. Maroney
SCIENTIST: K. Hori
CDS INSTRUMENT: Nominal.
  A mechanism lubrication was completed at 20:15 UT.
  The NIS was reset at 20:35 UT
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Mechanism Lubrication, Science Operations
COMMENTS:
=============================================================================
DATE:20-July-2001
DOY: 201
OPERATIONS ENGINEER(S): R. Yurow
SCIENTIST: K. Hori
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:21-July-2001
DOY: 202
OPERATIONS ENGINEER(S): B. Donaldson
SCIENTIST: K. Hori
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:22-July-2001
DOY: 203
OPERATIONS ENGINEER(S): B. Donaldson
SCIENTIST: K. Hori
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:23-July-2001
DOY: 204
OPERATIONS ENGINEER(S): R. Yurow
SCIENTIST: E. O'Shea
CDS INSTRUMENT: 
  The command rate of the IWS software was reduced to 1/13 s to facilitate
  commanding on DSN-27.  After the science plan was loaded, the command rate
  was returned to its nominal value of 1/3 s.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:24-July-2001
DOY: 205
OPERATIONS ENGINEER(S): C. Maroney / R. Yurow
SCIENTIST: E. O'Shea
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:25-July-2001
DOY: 206
OPERATIONS ENGINEER(S): C. Maroney / R. Yurow
SCIENTIST: E. O'Shea
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: 
  The command rate of the IWS software was reduced to 1/13 s to facilitate
  commanding on DSN-27.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:26-July-2001
DOY: 207
OPERATIONS ENGINEER(S): C. Maroney / R. Yurow
SCIENTIST: E. O'Shea
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:27-July-2001
DOY: 208
OPERATIONS ENGINEER(S): C. Maroney / R. Yurow
SCIENTIST: E. O'Shea
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations
COMMENTS:
=============================================================================
DATE:28-July-2001
DOY: 209
OPERATIONS ENGINEER(S): C. Maroney / R. Yurow
SCIENTIST: E. O'Shea
CDS INSTRUMENT: 
  SOHO entered ESR at 20:33 UT due to an ACU reset.  Following the ESR,
  the telemetry point CKCMODE read #90 indicating that CDS was still in
  EXE_VDS mode, instead of the expected #20 (STANDBY mode).  Cause of this
  anomaly was attibuted to the CDHS locking up when the S/C switch into
  its low-rate telmetry mode following the ESR.  
  S/C substitution heaters were enabled for CDS at ~23:45 UT.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations, Thermal Monitoring
COMMENTS:
=============================================================================
DATE:29-July-2001
DOY: 210
OPERATIONS ENGINEER(S): C. Maroney / R. Yurow
SCIENTIST: E. O'Shea
CDS INSTRUMENT: 
  A sequence of commands was uploaded to in order to insure that CDS was 
  in STANDBY mode and that the doors were shut.  Prior to uploading the 
  commands, the IWS command rate was switched back to its nominal value of
  1/3 s.  The initial command sent to CDS caused an OBDH toggle bit error
  indicating that CDS was not receiving commands.  Following a hard reset
  of CDS, commands were sucessfully sent to the instrument.  CDS was then
  placed in STANDBY mode and it was verified that CDS doors were already
  closed.  
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Thermal Monitoring.
COMMENTS:
=============================================================================
DATE:30-July-2001
DOY: 211
OPERATIONS ENGINEER(S): C. Maroney / R. Yurow
SCIENTIST: T. Winter
CDS INSTRUMENT: 
  Commands were sent to CDS to distribute the LOBT to the instrument and
  to enable the CDHS primary memory dump.  CDS remains nominal in STANDBY
  mode with temperatures stable.  
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Thermal Monitoring
COMMENTS:
=============================================================================
DATE:31-July-2001
DOY: 212
OPERATIONS ENGINEER(S): C. Maroney / R. Yurow
SCIENTIST: T. Winter
CDS INSTRUMENT: 
  S/C substitution heaters for CDS were disabled at 18:55 UT in preparation
  for instrument recovery.  The CDHS was rebooted using the CB3RESET command
  and recovered back to READY_BOTH.  Recovery operations were completed at
  20:29 UT.   
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Thermal Monitoring
COMMENTS:
=============================================================================




From the CDS Operations Management Team in the Space Science & Technology Department at CCLRC Rutherford Appleton Laboratory
Site maintained by John Rainnie.
Last revised on Tuesday (17/Jul/2001) at 09:04.