SOHO Daily Meeting Minutes for Thursday, 29 June 2000
FOT REPORT
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Spacecraft Status: Nominal
Spacecraft Anomalies: None
Accomplished Activities: VIRGO, CELIAS, 26 Meter Automation Demo Track
Planned Activities:
VIRGO, CELIAS, Nom. HGA Table, Acquire new tracking star, mag = 7.1
Upcoming Operations: July 18: Stationkeeping & Mom. Management Maneuvers
Ground Anomalies:
180/1225 Command outage from 1225 to 1226 and again at 1230
to 1231 due to PA failure (Klystron airflow fault)
at D16. This occurred during the 26m automation
demo track.
180/1240 Lost 2 minutes of recoverable TLM due to a TCP
failure at D16. This occurred during the 26m
automation demo track.
180/1432 Wayward command. Lost one command which never
reached Station D16; cause unknown. Delayed
commanding activities 43 minutes for investigation.
180/2340 Wayward command. Lost one command which never
reached Station D16; cause unknown. Delayed
commanding activities 2 minutes.
181/0124 Lost 3 minutes of recoverable TLM due to a failure
of the Big Pipe between Canberra and JPL.
181/0348 Lost 26.5 minutes of TLM and command ability due to
a hydraulic failure of D46's Y-axis controller.
Lost data is recoverable from D54, which was up
early for the next DSN support.
181/0419 Single command failed to be transmitted to the
spacecraft due to a CPA failure at D54. Delayed
commanding activities 8 minutes.
SOLAR STATUS
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SOLAR ACTIVITY FORECAST (UPDATED 28 JUNE AT 22 UT): SOLAR ACTIVITY
IS EXPECTED TO BE LOW TO MODERATE. MOSTLY LOW LEVEL C-CLASS
FLARES ARE LIKELY WITH AN ISOLATED CHANCE OF AN M-CLASS EVENT.
GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO
BE MOSTLY QUIET TO UNSETTLED WITH ISOLATED ACTIVE PERIODS AT HIGH
LATITUDES.
06/28 DOY 180 - 06/29 DOY 181
EIT daily On-Line Solar Status and observations:
http://umbra.nascom.nasa.gov/eit/plan/log_form20000629.html
LASCO daily On-Line Solar Status and observations:
http://lasco-www.nrl.navy.mil/observations/2000/obs20000629.html
INSTRUMENT STATUS
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CDS: Nominal. Today - Sunspot study at AR 9057 and flare interrupt
study. Friday - Loops on the limb with TRACE, target TBD.
SUMER: Nominal. Interested in doing ICAL01 on quiet sun next week.
UVCS: Nominal. Yesterday UVCS caught a large CME at 295 degrees, 2.3 Rsun
between 19:06 and 00:40 UT. Today - UVCS finishes their CME watch
at 16 UT and begins the 24-hour synoptics. Friday - Mars Global
Surveyor campaign.
LASCO: Nominal. C2 and C3 synoptics.
EIT: Nominal. 195 Angstrom CME watch and synoptics.
MDI: Nominal. Full disk magnetograms and dopplergrams.
TRACE: Nominal. Today - studying the loops that connect
AR 9057 and AR 9055, followed by sunspot observations associated
with AR 9057. Friday - Observations in a quiet sun area in the
East followed by loops on the limb observations with CDS.
AOB: JOP128 begins on Saturday. Possible target: AR 9062.