Halo CME Mail

Date: Tue, 12 Mar 2002 16:45:51 +0000 (GMT)

From: Kevin Schenk

Subject: Full HALO CME 2002/03/11

  ------------------------------------------------------------------------

UCMEO 93001 20312 1630/
20311 62306 90218 0921/ 091// 323// 40883
20311 72235 82348 20743 09866 4212/
99999

BT

EIT and LASCO observed a full HALO CME Event 2002/03/11.  This event was
first seen in C2 begining at 23:06 UT on 2002/03/11 as a double loop front
with bright LE and wide cavity.  First entering the field at PA 120
degrees and  developing to a full HALO with faint material off the West
limb.  The event was first seen in C3 at 23:42 UT and tracked to 16Rs
before a temporary DSN data gap.  The plane-of-sky speeds averaged in both
fields to 883 km/sec with acceleration through C3.

This event was first seen in EIT at 22:35 UT with a Southward transient
dimming of AR 9866 at location [S7.8; E43.5].  The observation was less
than good during this period as we were taking cal images and loading a
new observation plan.

Images and movies of the event are on the FTP server at:

ftp://ares.nrl.navy.mil/pub/lasco/halo/20020311/

Best reguards

Kevin Schenk
EIT and Lasco Operations
NASA-Goddard Space Flight Center, USA