SOHO DAILY REPORT

Operations Day -- 045/1996 (02-14-96)
Mission Day 75

SOHO FLIGHT OPERATIONS TEAM, NASA/GSFC
Ref. #:   SH-FOT-DR-960212
=====================================================================


PASS #1 Canberra DSS46  05:36:00 07:01:00
PASS #2 Madrid DSS66  06:26:00 14:21:00
PASS #3 Goldstone DSS16  13:48:00 17:06:00
PASS #4 Goldstone DSS46  13:48:00 17:06:00
PASS #5 Canberra DSS46  18:19:00 23:22:00
PASS #6 Canberra DSS42  23:22:00 07:10:00
Pass #7 Canberra DSS46  00:36:00 07:00:00



Pass #1 Summary
---------------------

Anomalies: 

G-358 05:00  D66 Lacks SOE E
S-122 05:38  SUMER Yellow Limits

Activity Summary:

NRT:

None

- SSR SEF Reset
- Handover to DSS66



Pass #2 summary
---------------------

Anomalies: 

None

S-113 05:38  QTMI1A Yellow Limit

NRT:

None

- Dumped SSR Recorder
- Reset Min/Max Monitoring
- Distrinuted LOBT to CELIAS
- Reset SSR SEF counter
- Performed CELIAS CTOF pre-HOI preparation TSTOL
- IRU B Calibration
- IRU A Calibration
- Update Roll Steering Law
- Transition from HR to MR TM at 1330
- Handover to D16


Pass #3 summary
---------------------

Anomalies: 

G-359 17:06 Y-axis hydrolic failure at DSS16

Activity Summary:

NRT:

None

*** DSS12 used as hot bakcup for DSS16

- Transition from AOCS NM to AOCS RMW control
- Dumped star mapping buffer
- Performed pre-deltaV procedures
- Delta V Segment:  Activities up to 1706 thruster burn started
- Hydrodolic failure at DSS16 at 1706:  Transitioned to DSS12 No data loss, 
CMD capability maintained.
- Continued DeltaV segment on DSS12
- Performed star mapping for roll attitude determination
- SSA9 commissioning test:  RW functional test, stiction test, momentum 
management
- Handover to DSS46


Pass #4 summary
---------------------

Anomalies: 

G-360 20:07  CPA Failure, Data loss
G-361 21:04  String 1 crash
G-363 02:23  FDF unable to provide RSL table
G-365 06:56  Unexpected POCC crash, string 2
S-114 20:30  ACU Anomaly

Activity Summary:

NRT:

None

*** DSS12 used as hot bakcup for DSS46

- Continued momentum management and SSA9 commissioning
- Perform additional star mapping and download
- Track two additional stars (slot 2,3)
- Reset pinting flags
- Uplink and enable roll steering law table


Pass #5 summary
---------------------

Anomalies: 

G-362 23:13  9 minute data loss

Activity Summary:

NRT:

None

- Roll attitude determination - Post momentum management
- Trim Roll attitude
- Return to HR data at 0038
- Transition to from AOCS RMW to AOCS NM control
- IRU spin down


--End of report--