SOHO Daily Meeting Minutes for Monday, 20 August 2001
ANNOUNCEMENTS
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* Submode change at 15 UT today.
* The FDDI concentrator in Building 26 will be shut down on Tuesday,
August 21 at 1 pm, for less than an hour. All FDDI machines in the
150.144.30 subnet will be affected. This includes all of the filers
and umbra, as well as any user machines using FDDI.
* Fire evacuation training will be Wednesday 22 August at 10:30am
in the EOF.
FOT REPORT
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Spacecraft Status: Nominal
Spacecraft Anomalies:
232/0701 CEPAC ESU Data Request Error. Recovered
autonomously after 5 minutes. Impacts TBD.
232/0914 CEPAC ESU Data Request Error. Recovered
autonomously after 4 minutes. Impacts TBD.
Accomplished Activities:
DOY 229: VIRGO, CEPAC, RSL, Executed OCD #1542 to
correct ERNE/ESU Communication Anomaly of Type 2
DOY 230: VIRGO, SWAN
DOY 231: VIRGO, Noncoho Load, Flight S/W Maint.
Planned Activities: VIRGO, SUMER resumes operations, Switch to
Science Submode 5, Acquire new tracking star,
mag = 6.9
Upcoming Operations: Sept.3 ACU/CDMU Memory Dumps
Ground Anomalies:
229/1646 SH5XT1 terminal crashed. No operational impacts.
229/2000 Voice lines to Goldstone down. No direct voice
communication with D16 for 14 minutes.
231/0019 SCP failure at D16 resulted in 43 minutes 34 seconds
of lost TLM. All data, except 2 minutes 18 seconds,
should be recoverable from the CDR. Lost command
ability for 44 minutes.
231/0133 SFG failure resulted in 26 minutes 39 seconds of lost
TLM from D16, and 65 minutes 32 seconds of lost TLM
from D46. Data should be recoverable from the CDR.
Lost command ability for 113 minutes. Delayed MDI data
transition approximately 3 hours.
231/0845 Late AOS from D66. Lost 1 minute of data recoverable
from the SSR.
231/0845 D66 unable to bring carrier up due to command modulation
problems at the site. Commanding activities delayed 7
minutes.
232/0225 D46's initial carrier sweep for spacecraft receiver
#2 failed, reason unknown.
SOLAR STATUS
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08/17 DOY 229 - 08/20 DOY 232
EIT daily On-Line Solar Status and observations:
http://umbra.nascom.nasa.gov/eit/plan/log_form20010820.html
LASCO daily On-Line Solar Status and observations:
http://lasco-www.nrl.navy.mil/observations/Todays_obs.html
Summary page on last week's proton storm last week:
http://surfwww.mssl.ucl.ac.uk/surf/week/33_2001.html
INSTRUMENT STATUS
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CDS: Nominal. GIS raw dumps, AR studies watching an active region come
around the east limb, quiet sun study with BBSO (SXT is also
joining this study). GIS raw dumps will take precedence whenever
NRT is available.
SUMER: After the submode change, SUMER opens the door, powers-up
detector A and waits a few hours for the instrument thermalization.
From 22:00 UT today until 14:00 UT tomorrow: Full Sun HEI 584A from
telescope scattered light, then Quiet Sun O VI until Lyman beta
programme starts at 19:00 UT, to check the line positions
on the detector.
UVCS: Nominal. Star observations and synoptic. Tomorrow: polar streamer
and CME observations and finishing up any remaining star observations.
LASCO: Nominal. C2/C3 synoptics, C3 comets in colors observations.
EIT: Nominal. 195 CME watch and synoptics.
MDI: Nominal. Full disk dopplergrams and magnetograms.
TRACE: Nominal. Observing on AR 9575. Tomorrow: Coordination with SUMER and
possibly Sac Peak or BBSO.