
LASCO Activity Report for
June 1, 2007 SOHO Science Daily Meeting
Planner: K. Schenk, G. Stenborg
Event times are first frame seen in C2 camera unless otherwise noted.
These are preliminary observations for the daily SOHO science discussions.
Final analysis is reported on the Lasco CME list.
An archive of these reports is available.
Points Of Interest
KEYHOLE Operations:
-------------------
26 m keyhole: 2007/05/18 - 2007/06/05
34 m keyhole: 2007/05/21 - 2007/06/01
While in Keyhole, improved cadence in LASCO C2 (12 min) and
LASCO C3 (30 mins).
EIT CCD bakeout ended on 2007/05/24. Observations resumed on 05/25.
EIT CCD Bakeout as originally planned: started on 2007/05/18 @ ~15:00 UT
and ends on 2007/06/05.
Spacecraft Maneuvers on Tuesday 2007/05/29.
(Station Keeping, Momentum Management, and 180 deg Roll.
LASCO safed on 2007/05/28 @ 12:00 UT and recovered on
2007/05/31 @ ~ 01:00 UT.
2007/05/31 (Thursday)
EIT/LASCO synoptic program (EIT in 195A CME watch)
resumed on 05/31 @ ~ 01:30 UT.
First C2 image after S/C Maneuvers: 01:29 UT
First C3 image after S/C Maneuvers: 01:42 UT
01:54 UT ES East Faint front already under development. WIDTH in C3
at 04:42 UT: ~ 25 deg. The event fades throughout C3.
08:30 UT ES East Small and faint ragged blob-like front starts to be
discernible.
12:54 UT S West 'Pair formation'. Difficult to give an exact time
of exact occurrence.
19:06 - 22:30 UT LASCO Data Gap (C2 time).
22:30 UT ES East Elongated fan-like front already well under
development after data gap (LE at the edge of the
C2 FOV).
2007/06/01 (Friday)
05:30 - 11:30 UT LASCO Data Gap (C2 time).
Last C2 image available by the time of writing: 12:31 UT.
Web curator:
K.M.Schenk
NASA Goddard Space Flight Center
Solar Physics Branch / Code 682
Greenbelt, MD 20771