Halo CME Mail

Date: Tue, 30 Jul 2002 10:14

From: Gareth Lawrence

Subject: Partial Halo CME on 2002/07/29. frontsided

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

UCMEO 93001 20730 1600/
20729 61145 92318 2401/ 040// 123// 40445
20729 60736 91100 43434 ///// 2222/
99999

PLAIN

BT

LASCO and EIT observed a partial halo CME on 2002/07/29. The
event was first observed in C2 at 11:45 UT as a bright loop
front over the NW limb; by 12:42 UT the front extended from
PA 240 to PA 40. The front first appeared in C3 at 12:18 UT
with maximal coverage of the C3 occultor by 02:18. The plane
of sky speed of the front was measured as 445 km/s at PA 310
(NW).

The CME was most probably associated with an moderate eruptive
prominence in the NW, which EIT observed between 07:36 - 11:00 UT.
The prominence is most obvious at 10:13 UT centered on N34W34.
On-disk activity was low during this time. Neither an EIT wave
nor dimming were observed in association with this event.

Movies and images of this event are available now at:

ftp://ares.nrl.navy.mil/pub/lasco/halo/20020729

Best wishes,
        Gareth Lawrence.

++
| Gareth Lawrence,                   E-mail:grl@kreutz.nascom.nasa.gov |
| SOHO-LASCO Operations Scientist,                                     |
| CUA, Mail Code 682.3,                                                |
| NASA Goddard Space Flight Center,      Phone:  +1-301-286-2941       |
| Building 26, Room 001,                         +1-301-286-3447       |
| Greenbelt, MD 20771.                   Fax:    +1-301-286-0264       |
++