SOHO Daily Meeting - Thursday, 4 May 2000
FOT Briefing
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Spacecraft Status: Nominal
Spacecraft Anomalies: None
Accomplished Activities: VIRGO
Planned Activities:
VIRGO, CELIAS DPU Patch, NOM HGA Table, New tracking star
Ground Anomalies:
124/1545 - TC Block Sequence Error due to wayward command
(11 CDS NRT cmds retransmitted; NRT paused 7 mins)
124/1600 - TGC problem at D16 caused bad clock corr result
125/0805 - Unable to lock RCVR1 and range at D66
Solar Status
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EIT daily On-Line Solar Status and observations:
http://umbra.nascom.nasa.gov/eit/plan/log_form20000504.html
LASCO daily On-Line Solar Status and observations:
http://lasco-www.nrl.navy.mil/observations/2000/obs20000504.html
FROM NOAA WWW PAGE:
SOLAR ACTIVITY FORECAST: SOLAR ACTIVITY IS EXPECTED TO BE LOW WITH A SLIGHT
CHANCE OF AN M-CLASS EVENT FROM REGION 8970 OR 8971 (N18W85) AS EACH REGION
PASSES OVER THE WEST LIMB.
GEOPHYSICAL ACTIVITY FORECAST: THE GEOMAGNETIC FIELD IS EXPECTED TO BE MOSTLY
QUIET TO UNSETTLED WITH ISOLATED PERIODS OF ACTIVE CONDITIONS POSSIBLE.
Instruments
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CDS: See report below from MEDOC
SUMER: See report below from MEDOC
UVCS: Today: 24 hour synoptic program with profile studies in the southeast.
Tomorrow: Galileo study (124 and 135 degrees)
and mini-synoptic (4 hours).
LASCO: C2 and C3 synoptics.
EIT: Nominal, doing 195 CME watch and synoptics.
MDI: Performed calibrations yesterday. Will stay with high resolution
observations throughout the weekend.
TRACE: Today, JOP107 and filament study with SUMER.
For tomorrow, they will basically follow SUMER's target selection.
(Will work out detailed program later today).
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Report from MEDOC
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Announcements:
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Welcome to Robert Erdelyi from Sheffield, Gerry Doyle from Armagh,
Maria Madjarska from Sofia, and Lidia van Driel from MEUDON who joined
us today.
Raw evaluation of observations from May 3:
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CDS: JOP 107 => the prominence at the southern limb is not there
JOP 120 => probably OK. The data are not evaluated yet.
SUMER: JOP 107 same as CDS
Filament oscillations => seems OK
THEMIS: got the prominence at the southern limb.
Instrument planning for Friday, May 5:
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CDS: Synoptic 00:00 - 06:00 UT
Oscillations in filament 08:00 - 10:00 UT
(=JOP 95) target: X = -290" Y = -360"
JOP 17 Filament 10:00 - 12:00 UT
target: X = -290" Y = -340"
12:00 - 14:00 UT
target: X = -526" Y = -254"
JOP 107 Prominence 14:00 - 15:00 UT
target: X = 766" Y = 648"
Oscillations in filament 15:00 - 17:00 UT
(=JOP 95) target: X = -290" Y = -320"
AR loops at the limb 17:00 - 19:00 UT
target: X = +1000" Y = -235"
Test on JOP 38 19:00 - 21:00 UT
target: X = -290", Y = 100"
Tornado 21:00 - 24:00 UT
target: X = -80" Y = +940"
SUMER: Network observation 00:00 - 08:00 UT
target: X = -290", Y = 0"
Oscillations in filament 08:00 - 10:00 UT
(=JOP 95) target: X = -290" Y = -360"
JOP 17 Filament 10:00 - 12:00 UT
target: X = -290" Y = -340"
Oscillations in filament 15:00 - 17:00 UT
(=JOP 95) target: X = -290" Y = -320"
Filament reference spectra 17:00 - 19:00 UT
target: X = -290" Y = -310"
Test on JOP 38 19:00 - 21:00 UT
target: X = -290", Y = 100"
Joint obs. with GALILEO 22:00 - 24:00 UT
(until 16:00 on May 6)
target: X = -290", Y = -914"
X = -290", Y = -1114"
X = -290", Y = -1394"
General comments:
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SUMER: As suggested in the report sent yesterday, the possibility of a new
position of the slit has been discussed again this morning. JOP 122
planned to run during the week-end requires the SUMER slit included in
MDI high res. f.o.v.
It has been decided to move the slit towards X = -290" between 17:00
and 22:00 UT TODAY (Thursday, May 4).
We started to think about plans for the weekend: SUMER/GALILEO,
JOP 122, and JOP 118 are planned. More details in the report
that will be sent tomorrow.