Halo CME Mail

Date: Fri, 9 Nov 2001 17:14

From: Gareth Lawrence

Subject: Partial Halo CME on 2001/11/09, backsided

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Following the successful momentum management and station keeping
maneuvers this week, LASCOs doors were reopened today, 2001/11/09
and regular C2 and C3 white light observations were resumed
shortly after 21 UT. It is clear from the handful of images
presently available that a large partial halo CME spanning
some 180 deg - primarily over the W limb but spanning both
poles - occurred sometime before the doors were opened.

The EIT data clearly show a large CME on or slightly over
the W limb. This would be consistent with an event in or
near AR9684, which has now rotated over the W limb.
Therefore this event has been determined backsided.

Best wishes,
        Gareth Lawrence.

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| 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       |
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