Halo CME Mail

Date: Mon, 11 Nov 2002 17:57

From: Gareth Lawrence

Subject: Partial Halo CME on 2002/11/10, frontsided

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UCMEO 93001 2111 2330/
21110 60330 90942 0851/ 315// 223// 40981
21110 60312 90348 33811 10180 1112/
99999

PLAIN

BT

LASCO and EIT observed a partial halo CME on 2002/11/10. The
event was first observed in C2 at 03:30 UT as a bright loop
front over the SW limb; by 04:06 UT the front spanned 200 deg
from PA 85 - 285, with further very faint extensions in the
NW. The front first appeared in C3 at 03:42 UT with maximal
coverage of the C3 occultor by 05:18 UT. The mean plane-of-sky
speed for this event was 981 km/s at PA 216, with slight
acceleration possible through the fields of view.

The CME was probably most associated with an M2.4 X-ray flare
in AR0180. GOES records this flare between 03:07 - 03:58 UT
with peak emission at 13:14 UT, centered on S12W37. EIT
observed the flare between 03:12 - 03:48 UT with peak emission
at 13:12 UT centered on S11W38. Both an EIT wave and dimming
were associated with this event, both largely directed to the
S and E of the active region and flare.

Movies and images of this event are available now at:

ftp://ares.nrl.navy.mil/pub/lasco/halo/20021110

Best wishes,
        Gareth Lawrence.

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| Gareth Lawrence,                   E-mail:grl@kreutz.nascom.nasa.gov |
| SOHO-LASCO Operations Scientist,                                     |
| CUA, Mail Code 682.3,                                                |
| NASA Goddard Space Flight Center,      Phone:  +1-301-286-2941       |
| Building 26, Room 001,                         +1-301-286-3447       |
| Greenbelt, MD 20771.                   Fax:    +1-301-286-0264       |
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