Halo CME Mail

Date: Mon, 24 Jul 2000 18:15:53 +0000 (GMT)

From: Simon Plunkett

Subject: Partial halo CME on 2000/07/23

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LASCO and EIT observed a partial halo CME on 2000/07/23. The event was
first visible in C2 at 05:30 UT over the S pole, where it appeared as a
relatively faint front with a brighter trailing core. It later extended
over about 160 degrees, from PA 75 (NE limb) over the S pole to PA 235 (SW
limb). The measured speed of the leading edge was 529 km/s at PA 180 (S
pole).

EIT observed a filament eruption in AR 9097 (located at about N06 E25),
and in a filament channel to the SW of this region, beginning at about
04:36 UT. The filament eruption extends past CM into the western
hemisphere of the visible solar disk.

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

ftp://ares.nrl.navy.mil/pub/lasco/halo/20000723.

Best wishes,

Simon Plunkett.

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| Simon Plunkett,              E-mail: plunkett@kreutz.nascom.nasa.gov |
| USRA, Mail Code 682.3,                                               |
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