Halo CME Mail

Date: Mon, 12 Feb 2001 15:01

From: Gareth Lawrence

Subject: Full halo CME, 2001/02/11

  ------------------------------------------------------------------------

UCMEO 93001 10212 1900/
10211 60131 90742 0001/ 360// 323// 40824
10211 60113 90136 35724 09346 1212/
99999

PLAIN

BT

LASCO and EIT observed a full halo CME on 2001/02/11. The event was
first observed in C2 at 01:31 UT, as a bright loop front over the NE limb.
At 02:30 this bright front extended from about PA 275 to PA 30, while
fainter extensions could be seen around the remainder of the C2 occulting
disk. The north-westerly front first appeared in C3 at 02:18 and the
the occulting disk was surrounded by 03:42. The plane-of-sky speed of
the leading edge through to the edge of the C3 field of view was about
824 km/s at PA 310 (NW limb).

The CME was probably associated with a GOES C6.5 X-ray flare in AR 9346.
SEC recorded this flare between 00:57 - 01:46 with the peak at 01:23.
EIT observed the flare at 01:13. The majority of the activity was close
to the limb.

Images and movies of this event are available at:

ftp://ares.nrl.navy.mil/pub/lasco/halo/20010211.

Best wishes,

Gareth Lawrence.

++
| Gareth Lawrence,                 E-mail:grl@ajcannon.nascom.nasa.gov |
| SOHO-LASCO Operations Scientist,                                     |
| CUA, Mail Code 682.3,                                                |
| NASA Goddard Space Flight Center,      Phone:  +1-301-286-3412       |
| Building 26, Room G-1,                         +1-301-286-3447       |
| Greenbelt, MD 20771.                   Fax:    +1-301-286-0264       |
++