LASCO Activity Report for
June 20, 2005 SOHO Science Daily Meeting

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

* Telemetry KEYHOLE (SOHO will stay in TM Submode 5 during the Keyhole): 
  2005/06/05 - 2005/06/25: 26 m
  2005/06/09 - 2005/06/20: 34 m

* SOHO Maneuvers: 2005/06/17
  - LASCO safed on 2005/06/16 (Thursday) at 15:30 UT.
  - Station keeping, Momentum management, and 180 deg Roll on 2005/06/17
    (burns completed by ~15:55 UT).
  - LASCO recovery on 2005/06/18 (Saturday) at ~18:00 UT. 

* During the KEYHOLE, LASCO will be in synoptic improved program (12 min 
  cadence C2, 30 min cadence C3), with little loss of telemetry throughout 
  due to the advanced recorder setup.

* 2005/05/06 - 2005/06/24: EIT Bakeout (==> No EIT CME Watch).
  EIT performed the long pre-bake calset (06/06 15:58-21:45 UT) and went 
  to heaters on at 21:52 UT. EIT will be in bake till June 24 @ 10:00 UT 
  and should resume imaging by (06/24) 20:00 UT.
 

2005/06/17 (Friday)

	
SOHO Maneuvers. NO LASCO images during this day. 

2005/06/18 (Saturday)

	
	First LASCO C2 image before opening doors: 18:17 UT
	First LASCO C3 image before opening doors: 18:21 UT

18:29 UT  E Limb	Trailing material of event already under development,
			developing slightly toward ENE.

18:48 UT  WS West	Diffuse front preceding and elongated loop-like
			feature wih apparently twisted trailing material. It
			fades throughout C3.

20:12 UT  E Limb	Faint and expanding ragged loop front in the trailing
			mateial of event reported at 18:29 UT, developing
			slightly toward ENE.

23:24 UT  E Limb	Ragged front that develops slightly toward ENE, with
			faint expanding extensions toward S. Continuous
			outflow well into next day.

NOTE:
GOES reported multiple B-class and several C-class X-ray flares from NOAA AR
10780 all along the day (in average around S07E60).

2005/06/19 (Sunday)

	
00:48 UT  E Limb	Another ragged front that develops slightly toward ENE,
			with very faint expanding extensions toward S.

02:12 UT  E Limb	Slow development of a faint system of expanding loops,
			partly superposed in the LOS with the trailing material
			of the chain of events reported on E. The system 
			develops as a big and expanding twisted structure.

05:24 UT  S West	Very faint asymmetric loop front that fades throughout
			C2.

12:00 UT  WN West	Bright and ragged loop front preceded at 09:12 UT by
		 	a faint and diffuse feature.

12:36 UT  E Limb	Ragged front with very faint expanding loop-like
			extensions toward S.

20:48 UT  E Limb	Small fraont that fades close to the inner edge of C3,
			preceded by a couple of blob-like fronts developing 
			toward ENE. Very faint expanding extensions to S.

22:36 UT  ES East	Very faint loop front that fades throughout C3.

2005/06/20 (Monday)

	
03:36 UT  W Limb	Bright ragged loop front. 

	05:12 - 11:36 UT	Temporary Data Gap.

Time of the last C2 image analyzed: 13:00 UT.