Halo CME Mail

Date: Sat, 24 Nov 2001 02:19:51 +0000 (GMT)

From: Kevin Schenk

Subject: Full Halo CME 20:58 UT of 2001/11/22

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

UCMEO 93001 11123 2300/
11122 72058 80018 2441/ 243// 233// 31246
11122 62024 82148 36725  09698 1122/
99999

BT

EIT and LASCO observed 2 full halo CMEs on Friday November 22, 2001.  This
message will pertain to the first.  This event was first seen in C2 at
20:58 UT as a bright loop front with core over the South West limb.  Event
was in progress and with the high velocity only 1 frame was taken in the
C2 field.  Material was seen at all postion angles while traveling through
the C3 field.  Plane-of-sky speeds were averaged to 1246 km/sec at
position angle 243 to 30Rs.

EIT sees a bright flare event starting at 20:24 UT.  This event is most
likely associated with the M4 class x-ray flare of AR 9698 located in the
SW at [S25; W67].  An EIT wave spanning the lower quadrent is seen as a
post event loop arcade follows by 21:48 UT.  This event is problably the
event seen in Lasco.

Images and movies of the combination of these 2 events due to closeness in
time are located on the Lasco servers at:

ftp://ares.nrl.navy.mil/pub/lasco/halo/20011122/

Best requards

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