SOHO DAILY REPORT

Operations Day -- 357/1995 (12-23-95)
Mission Day 22

SOHO FLIGHT OPERATIONS TEAM, NASA/GSFC
Ref. #:   SH-FOT-DR-951224
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PASS #1 Canberra DSS44  04:16:00 06:12:00
PASS #2 Madrid DSS66  09:38:00 11:31:00
PASS #3 Goldstone DSS16  15:08:00 22:29:00
PASS #4 Canberra DSS46  22:00:00 358/06:09:00


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

Anomalies:

G-154: TM dropout due to TCA #1 Failure
 - Lost 1 minute telemetry (non-recoverable)
 - DR# J9270

Pass Activities:

- Reset SSR SEF counters
- Dump SSR
- Reset SSR SEF counters
- SSR to record


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

Anomalies: None


Activity Summary:
- Reset SSR SEF counters
- Dump SSR
- Reset SSR SEF counters
- SSR to record


Pass#3 Summary
---------------------

Anomalies:

G-155: Telemetry Dropout
 - No telemetry from 15:53:00 to 16:05:41
 - PACOR II reported good telemetry
 - TOC switch reported no telemetry
 - Station reported no problem
 - Problem cleared while checking, telemetry recoverable


Activity Summary:

- SSR Playback
- Uplink new roll steering law table
- CELIAS Commissioning Blocks 2.2.4, 2.2.5
- OBT Frequency adjust at 19:11
- Playback of lost telemetry
- Reset SSR SEF counters

NRT:
- 17:50-18:50 LASCO
- 19:45-21:15 SWAN


Pass#4 Summary
---------------------

Anomalies:

G-156: Two carriers at same time
 - DSS 46 uplinked carrier without FOT permission
 - DSS 16 still had carrier up
 - S/C transponders lost lock
 - DSS 16 requested to resweep
 - Lost 30 seconds telemetry (unrecoverable)

S-67: Roll Anomaly Triggered
 - Detected at 358/0314 and 358/0625
 - Reset flags in both instances
 - Investigation on-going


Activity Summary:

- Reset SSR SEF counter
- Performed state of health checks throughout pass
- SSR to record

NRT:
- 22:30 - 23:25 SWAN
- 23:30 - 01:35 SWAN

--End of report--