==============================================================================
DATE:  01-Feb-1999
DOY: 32
OPERATIONS ENGINEER(S): R. Yurow, C. Maroney
SCIENTIST: 
CDS INSTRUMENT:
  CDS is in STANDBY mode, otherwise nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Thermal Monitoring.
COMMENTS:
==============================================================================
DATE:  02-Feb-1999
DOY: 33
OPERATIONS ENGINEER(S): R. Yurow, C. Maroney
SCIENTIST: 
CDS INSTRUMENT:
  SOHO entered Normal Mode and Medium Rate telemetry was regained at
  ~18:30 UT.  CDS appears to nominal in STANDBY mode, as expected.  
  New parity errors were detected in both the primary processor and secondary
  (science) processor memory space.  
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Thermal Monitoring.
COMMENTS:
==============================================================================
DATE:  03-Feb-1999
DOY: 34
OPERATIONS ENGINEER(S): R. Yurow, C. Maroney
SCIENTIST: 
CDS INSTRUMENT:
  Performed CDS recovery.  While in STANDBY mode the mechanism commissioning
  scripts for the slit, mirror, and OPS were performed.  CDS was then 
  returned to SNOOZE mode and a WATCHDOG error was triggered to reboot the 
  instrument.  The coldstart and warmstart procedures were then performed.  
  Recovery procedures were completed at 20:54 UT.  Finally, 5 FULLCCD studies
  were run with the door closed to test the NIS detector.   
CDS GROUND SYSTEM: Nominal.
DAY PLAN: CDS Recovery.
COMMENTS:
==============================================================================
DATE:  04-Feb-1999
DOY: 35
OPERATIONS ENGINEER(S): R. Yurow, C. Maroney
SCIENTIST: A. Fludra
CDS INSTRUMENT:
  After the return to READY_BOTH mode on DOY 34, instrument temperatures 
  continously increased until most temperature values entered HI ALARM.
  The apparent cause of the instrument heating up was leaving the spacecraft
  substitution heater enabled with a 60% duty cycle.  
  At 4:09 UT, the duty cycle of the spacecraft substition heater was reduced
  to 30% in order to prevent a spacecraft thermal reconfiguration.  Telescope
  temperatures subsequently began to drop.  
  The spacecraft substitution heater was turned off at 16:36 UT.
  CDS opened its doors at 17:01 UT.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: First Science.
COMMENTS:
==============================================================================
DATE:  05-Feb-1999
DOY: 36
OPERATIONS ENGINEER(S): R. Yurow, C. Maroney
SCIENTIST: A. Fludra
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations.
COMMENTS:
==============================================================================
DATE:  06-Feb-1999
DOY: 37
OPERATIONS ENGINEER(S): R. Yurow, E. Donaldson
SCIENTIST: A. Fludra
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations.
COMMENTS:
==============================================================================
DATE:  07-Feb-1999
DOY: 38
OPERATIONS ENGINEER(S): C. Maroney, W. Hammond
SCIENTIST: A. Fludra
CDS INSTRUMENT: 
  A parity error was detected in the primary processor memory space.  
  Since the parity error is in the Two-Transputer module, a CDS reboot
  will not be done at this time.  
  The science plan was aborted at 20:56 UT in order to aid in the analysis
  of the parity error.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations.
COMMENTS:
==============================================================================
DATE:  08-Feb-1999
DOY: 39
OPERATIONS ENGINEER(S): R. Yurow, C. Maroney
SCIENTIST: A. Fludra
CDS INSTRUMENT: 
  A parity error was detected in the primary processor memory space.  Since
  parity error is located in a safe location, no reboot is necessary.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations.
COMMENTS:
==============================================================================
DATE:  09-Feb-1999
DOY: 40
OPERATIONS ENGINEER(S): R. Yurow, C. Maroney
SCIENTIST: A. Fludra
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations.
COMMENTS:
==============================================================================
DATE:  10-Feb-1999
DOY: 41
OPERATIONS ENGINEER(S): R. Yurow, C. Maroney
SCIENTIST: A. Fludra
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations.
COMMENTS:
==============================================================================
DATE:  11-Feb-1999
DOY: 42
OPERATIONS ENGINEER(S): R. Yurow, C. Maroney
SCIENTIST: A. Fludra
CDS INSTRUMENT:
  A mechanism lubrication study was completed at 20:11 UT.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Lube Study, Science Operations.
COMMENTS:
==============================================================================
DATE:  12-Feb-1999
DOY: 43
OPERATIONS ENGINEER(S): R. Yurow, C. Maroney
SCIENTIST: A. Fludra
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations.
COMMENTS:
==============================================================================
DATE:  13-Feb-1999
DOY: 44
OPERATIONS ENGINEER(S): E. Donaldson
SCIENTIST: A. Fludra
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations.
COMMENTS:
==============================================================================
DATE:  14-Feb-1999
DOY: 45
OPERATIONS ENGINEER(S): R. Yurow
SCIENTIST:
CDS INSTRUMENT:
  A spacecraft ESR occured at 13:53 after a SEU in the Star Sensor Unit.
  Spacecraft substitution heaaters for CDS at were enabled at ~17:57 UT.
  CDS is nominal in STANDBY mode with doors closed.   
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Thermal Monitoring.
COMMENTS:
==============================================================================
DATE:  15-Feb-1999
DOY: 46
OPERATIONS ENGINEER(S): C. Maroney
SCIENTIST:
CDS INSTRUMENT:
  SOHO remains in ESR mode.  CDS is nominal in STANDBY mode.   
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Thermal Monitoring.
COMMENTS:
==============================================================================
DATE:  16-Feb-1999
DOY: 47
OPERATIONS ENGINEER(S): R. Yurow, C. Maroney
SCIENTIST:
CDS INSTRUMENT:
  SOHO remains in ESR mode.  CDS is nominal in STANDBY mode.   
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Thermal Monitoring.
COMMENTS:
==============================================================================
DATE:  17-Feb-1999
DOY: 48
OPERATIONS ENGINEER(S): R. Yurow
SCIENTIST:
CDS INSTRUMENT:
  SOHO remains in ESR mode.  CDS is nominal in STANDBY mode.   
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Thermal Monitoring.
COMMENTS:
==============================================================================
DATE:  18-Feb-1999
DOY: 49
OPERATIONS ENGINEER(S): R. Yurow, C. Maroney
SCIENTIST:
CDS INSTRUMENT:
  SOHO exite ESR mode and medium rate telemetry was regained at 13:55 UT.  
  CDS is nominal in STANDBY mode.   
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Thermal Monitoring.
COMMENTS:
==============================================================================
DATE:  19-Feb-1999
DOY: 50
OPERATIONS ENGINEER(S): R. Yurow, C. Maroney
SCIENTIST:
CDS INSTRUMENT:
  A parity error was detected in the primary processor memory space.  CDS
  remains nominal in STANDBY mode.   
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Thermal Monitoring.
COMMENTS:
==============================================================================
DATE:  20-Feb-1999
DOY: 51
OPERATIONS ENGINEER(S): E. Donaldson
SCIENTIST:
CDS INSTRUMENT:
  CDS is nominal in STANDBY mode.   
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Thermal Monitoring.
COMMENTS:
==============================================================================
DATE:  21-Feb-1999
DOY: 52
OPERATIONS ENGINEER(S): W. Hammond
SCIENTIST:
CDS INSTRUMENT:
  CDS is nominal in STANDBY mode.   
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Thermal Monitoring.
COMMENTS:
==============================================================================
DATE:  22-Feb-1999
DOY: 53
OPERATIONS ENGINEER(S): R. Yurow, C. Maroney
SCIENTIST:
CDS INSTRUMENT:
  CDS spacecraft substitution heaters were disabled at 16:05 UT.
  Performed CDS recovery.  CDS was brought down to SNOOZE mode and a 
  WATCHDOG error was triggered to reboot the instrument.  The coldstart and
  warmstart procedures were then performed.  While CDS was in STANDBY a 
  mechanism check was run and all mechanisms appear to be nominal.  CDS was
  then brought up to READY_BOTH.  During the recovery, none of the patches 
  were reloaded either on the CDHS or the GIS. Recovery procedures were 
  completed at 18:58 UT.  
  Finally, 5 FULLCCD studies were run with the door closed to test the
  NIS detector.    
CDS GROUND SYSTEM: Nominal.
DAY PLAN: CDS Recovery.
COMMENTS:
==============================================================================
DATE:  23-Feb-1999
DOY: 54
OPERATIONS ENGINEER(S): R. Yurow, C. Maroney
SCIENTIST:
CDS INSTRUMENT:
  CDS opened its doors at 16:49 UT.  Initial science studies show the 
  instrument to be nominal.     
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Open Doors, Test Science.
COMMENTS:
==============================================================================
DATE:  24-Feb-1999
DOY: 55
OPERATIONS ENGINEER(S): R. Yurow, C. Maroney
SCIENTIST: J. Ireland
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations.
COMMENTS:
==============================================================================
DATE:  25-Feb-1999
DOY: 56
OPERATIONS ENGINEER(S): R. Yurow, C. Maroney
SCIENTIST: J. Ireland
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations.
COMMENTS:
==============================================================================
DATE:  26-Feb-1999
DOY: 57
OPERATIONS ENGINEER(S): R. Yurow, C. Maroney
SCIENTIST: J. Ireland
CDS INSTRUMENT:
  GIS detectors 2 & 3 tripped at 8:05 UT.  Both detectors were reset at 21:19
  but GIS detector 3 again tripped at 21:57 UT.  In order to evaluate the 
  situation, GIS high voltages were disabled at 23:40.  In addition, the GIS
  was reset at 00:37 UT DOY 58 and the single old patch reloaded.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations.
COMMENTS:
==============================================================================
DATE:  27-Feb-1999
DOY: 58
OPERATIONS ENGINEER(S): E. Donaldson, R. Yurow
SCIENTIST: J. Ireland
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations.
COMMENTS:
==============================================================================
DATE:  28-Feb-1999
DOY: 59
OPERATIONS ENGINEER(S): W. Hammond, R. Yurow
SCIENTIST: J. Ireland
CDS INSTRUMENT: Nominal.
CDS GROUND SYSTEM: Nominal.
DAY PLAN: Science Operations.
COMMENTS:
==============================================================================