Halo CME Mail

Date: Sun, 26 Nov 2000 23:16:03 +0000 (GMT)

From: Simon Plunkett

Subject: Full halo CME on 2000/11/26

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UCMEO 93001 01126 2310/
01126 61706 92142 0001/ 360// 133// 40869
01126 61648 81800 43021 09236 1112/
99999

PLAIN

BT

LASCO and EIT observed a full halo CME today, 2000/11/26. The event was
first seen in C2 at 17:06 UT, as a bright front over the W limb. It later
became a full halo, although it was fainter in the E than in the W. The
measured speed in the plane of the sky was 869 km/s at PA 270 (W limb).

EIT observed an X4.0 flare, with associated dimming and probably a wave,
from AR 9236 (N21 W30), begginning at about 16:48 UT.

Images and movies of this event are available at the LASCO ftp server:

ftp://ares.nrl.navy.mil/pub/lasco/halo/20001126b.

Best wishes,

Simon Plunkett.

PS There may have been an earlier halo today, associated with the M2.2
flare also from AR 9236 at 02:47 UT. However, this event occurred during a
gap in DSN contact with SOHO, so these data are not yet available.

PPS Reports on the events of late on 11/24 and on 11/25 will follow. It
seemed more prudent to get the report on the latest event out first!

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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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| Greenbelt, MD 20771.                   Fax:    +1-301-286-0264       |
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