Halo CME Mail

Date: Sat, 25 Nov 2000 22:16:20 +0000 (GMT)

From: Simon Plunkett

Subject: Full halo CME on 2000/11/23

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UCMEO 93001 01125 2215/
01123 60606 91242 0001/ 360// 123// 40392
01123 60536 80726 33322 09238 2112/
99999

PLAIN

BT

As reported yesterday, LASCO and EIT observed a full halo event on
2000/11/23. The event was first seen in C2 at 06:06 UT as excess material
over the SW limb, with a bright loop in the same location at 07:31. It
later became a full halo, although it remained faint in the NE. The
measured speed in the plane of the sky was 392 km/s at PA 225 (SW limb).

EIT observed activity in AR 9231 from about 04:00 UT on, but the main
event was a filament eruption and C5.4 flare in nearby AR 9238 (located at
S22 W33), beginning at 05:36 UT. A weak EIT wave accompanied this filament
eruption.

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

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

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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