Halo CME Mail

Date: Mon, 22 Oct 2001 10:54

From: Gareth Lawrence

Subject: Full Halo CME on 2001/10/20, most probably backsided

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LASCO observed a fast, bright full halo CME on 2001/10/20. A bright
front spanned about 250 deg around C2's occulting disk at 02:26 UT,
and full coverage of the disk was evident by 02:50 UT.

The EIT data prior to this time shows only very low-level activity,
and at timings that do not coincide particularly well with the onset
of the CME in LASCO. 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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