Halo CME Mail

Date: Sat, 25 Nov 2000 22:37:21 +0000 (GMT)

From: Simon Plunkett

Subject: Partial halo CME on 2000/11/23

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As reported yesterday, LASCO and EIt observed a partial halo CME on
2000/11/23. The event was first seen in C2 at 20:30 UT, as a bright loop
over the SE limb. It later extended over a range about 135 degrees, from
PA 65 (NE limb) to PA 200 (SW limb). The measured speed in the plane of
the sky was 1059 km/s at PA 125 (SE limb).

EIT observed a filament eruption and subsequent arcade formation in or
near AR 9239 (located at S21 E63), beginning at 19:26 UT. This activity
extends over the SE limb, and probably extends behind the limb as well.

Images and movies of this event can be found at the LASCO ftp server:

ftp://ares.nrl.navy.mil/pub/lasco/halo/20001123b.

Best wishes,

Simon Plunkett.

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| Simon Plunkett,              E-mail: plunkett@kreutz.nascom.nasa.gov |
| USRA, Mail Code 682.3,                                               |
| NASA Goddard Space Flight Center,      Phone:  +1-301-286-2941       |
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