SOHO Daily Meeting Minutes for Friday, 25 May 2001
ANNOUNCEMENTS
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* SPWG today at 2 p.m. in EAF.
* See Weekly Meeting Minutes for next week's commanding schedule.
* The SOCs would like to thank eveyone at MEDOC for all their
hard work to make this campaign a very smooth one.
FOT REPORT
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Spacecraft Status: Nominal
Spacecraft Anomalies: None
Accomplished Activities: NOM HGA, VIRGO, SWAN, New Tracking Star,
TTMH_TOMM_MMTOMH_01144, CELIAS
Planned Activities: RSL, VIRGO, CELIAS, New Tracking Star,
TTMH_TOMM_MMTOMH_01145,145A
Upcoming Operations: None
Ground Anomalies:
1642 8.3 minutes TM dropout. D27. Line Problem. Recoverable.
SOLAR STATUS
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05/24 DOY 144 - 05/25 DOY 145
EIT daily On-Line Solar Status and observations:
http://umbra.nascom.nasa.gov/eit/plan/log_form20010525.html
LASCO daily On-Line Solar Status and observations:
http://lasco-www.nrl.navy.mil/observations/2001/obs20010525.html
INSTRUMENT STATUS
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CDS: Nominal. See MEDOC report.
SUMER: Nominal. See MEDOC report.
UVCS: Nominal. UVCS will do JOP139 today and through the weekend.
Sunday UVCS will begin a solar wind study.
LASCO: Nominal. C2/C3 synoptics and JOP139 support.
EIT: Nominal. Half res 195 CME watch and synoptics.
MDI: Nominal. Full disk/high res doppler campaign for continuous contact.
TRACE: Nominal. TRACE will continue to observe AR9463 and
AR interconnecting loops to AR9462.
MEDOC Daily minutes - Friday, May 25 2001
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Announcement:
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Telemetry interruptions at MEDOC around 15 UT on Wednesday
and Thursday. Telemetry flow resumed after reconnection.
Latest observations (Wednesday 23 and Thursday 24)
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GOLF (J. Charra) : they proceeded to a readjustement of their scanning of
filter temperature and found out that the filter aging leads to a
redshift of the bandpass : this has a less-than-1% impact in flux and
a quite negligible effect on velocity.
CDS (D. Pike) : as scheduled.
No big activity on AR 9463 except for a transition region event,
stronger than a blinker, at 18.53 UT on Thursday.
The action now takes place in AR 9468 where an M flare was reported at
19.44.
SUMER (P. Lemaire) : as scheduled.
Fe X and Fe XI lines in the quiet corona : farther in the corona,
the signal is faint and exposure times must be increased.
State of the Sun :
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The southern coronal hole (as seen in 195 and 10830) is taken as
a good target since it crosses the limb at the position of the
SUMER slit at the end of the week.
Friday 25 May:
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SUMER 00:00 - 18:00 UT Off-limb HeI (584 A) profile (P. Lemaire)
X= +860", Y = +600 to +1600"
19:00 - 24:00 UT JOP 122 (M. Madjarska)
X= +860", Y = +0"
CDS 0:00 - 03:17 UT Synoptic Meridian Image (0", 880")
03:24 - 12:32 UT Cambridge AR watch TARGET: from (X=+149", Y=+129") to
(X=+206", Y=+129")
12:32 - 13:06 UT NIS MCP engineering
13:24 - 19.18 UT JOP139 Flare Helium Abundance with Sac Peak
TARGET: (x=+234, y=+138") and (x=+288, y=+138")
19:32 - 23:48 UT JOP122
TARGET: (x=-0", y=-800")
UVCS Minisynoptic and JOP139 (06:00 - 24:00 UT)
Saturday 26 May :
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SUMER 00:00 - 17:30 UT Widths of Fe coronal lines in a coronal hole
region (J-C Vial)
X= +860", Y = -600 to -1000"
18:00 - 24:00 UT Off-limb HeI (584 A) profile (P. Lemaire)
(X= +860", Y = -435") to (X= +860", Y = -1200")
CDS 0:00 - 03:18 UT Synoptic Meridian Image (0", 880")
03:24 - 12:32 UT Cambridge AR watch
TARGET: (X=-233", Y=+128")
12:32 - 12:43 UT QCM logging
13:32 - 19.25 UT JOP139 Flare Helium Abundance with Sac Peak
TARGET: (x=-105, y=+111") and (x=-58, y=+111")
20:08 - 23:34 UT Off limb corona - North
TARGET: (x=110", y=1050") and (x=-110", y=1050")
Sunday 27 May :
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SUMER 00:00 - 12:00 UT Off-limb HeI (584 A) profile (P. Lemaire)
(X= +860", Y = -435") to (X= +860", Y = -1200")
12:00 - 24:00 UT Widths of Fe coronal lines in a coronal hole
region (J-C Vial)
X= +860", Y = -600 to -1000"
CDS 0:38 - 02:21 UT Off limb corona - North
TARGET: (x=0", y=870")
02:47 - 06:02 UT Synoptic Meridian Image (0", 880")
06:38 - 11:46 UT Off limb corona - South
TARGET: (x=110", y=-1050"), (x=-110", y=-1050")
and (x=0", y=-870")
12:28 - 123:16 UT Cambridge AR watch
TARGET: (X=+153", Y=+113")
Before leaving, D. Pike showed CDS data from April 10, when an M flare occured
around 5.26 UT during a CDS synoptic. Although the event took place more than
20 deg from CDS fov, CDS could trace the propagation of warm and hot material
through its raster. Impressive proper and Doppler motions (400 - 600 km/s)
are derived in OV.
Good bye, Dave.
The MEDOC Campaign ends on Monday 28 May although SUMER will continue its
observations (with the week-end program) until Wednesday morning.
Karine Bocchialini thanked all who participated during the 2 weeks and on
both sides of the Atlantic.
Next MEDOC Campaign (# 8) is scheduled for 15-28 October.