Halo CME Mail Date: Wed, 2 Jan 2002 16:24 From: Gareth Lawrence Subject: Full Halo CME on 2002/01/01, most probably backsided ------------------------------------------------------------------------ LASCO observed a full halo CME on 2002/01/01. A wide, bright loop front was first seen off the W limb in C2 data at 19:31 UT and this had developed into a full halo CME by 20:30 UT. The W limb front first appeared in C3 images at 19:42 UT and was a full halo CME by 21:42 UT. Frontsided activity was minimal in both EIT and GOES data, and there is some evidence of a far-sided event in EIT running difference movies. This event has therefore been determined backsided. Best wishes and happy new year, 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 G-1, +1-301-286-3447 | | Greenbelt, MD 20771. Fax: +1-301-286-0264 | ++