Halo CME Mail

Date: Thu, 10 Feb 2000 21:48:55 +0000 (GMT)

From: Simon Plunkett

Subject: Halo CME on 2000/02/10

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LASCO and EIT observed a full halo CME today, 2000/02/10. The event was
first visible in C2 over the N pole at 02:30 UT and later extended over
all position angles. The plane-of-sky speed of the leading edge was 845
km/s at PA 340 (NW limb). Note that this speed measurement includes data
from C3 only - the precise location of the leading edge was difficult to
identify in C2.

This CME was associated with a C7.3 X-ray event in AR 8858, located at
N27 E01. EIT observed a flare and coronal wave from this region
beginning at about 01:25 UT.

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

ftp://ares.nrl.navy.mil/pub/lasco/halo/20000210.

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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