April 1, 1997 CME

Note: This web page is preliminary, not citable, and for discussion purposes only


SOHO/EIT was running a high-cadence (14 minutes) campaign of full-field full-resolution 195 Å images on April 1, 1997. NOAA Active region #8026 had been the site of flaring activity and an emerging flux region on its east side.


GOES X-ray flux showing flares at around 5:05 UT and 13:48 UT.

At 5:01 UT and 14:00 UT EIT detected the initiation of what appeared to be Moreton waves. The 14:00 UT wave was the strongest, accompanied by a CME observed by LASCO C2. These waves were preceded by

Movies:


Difference movie of EIT 195 Å images showing wave coming from flaring region
(Warning: 2 Mb)


Difference movie of EIT 195 Å images showing wave coming from flaring region
(538 Kb)


EIT 195 Å images showing wave coming from flaring region - for keen eyes only!
(538 Kb)

Images:

195 Å and running difference of 195 Å together:

195 Å 12:44 UT 195 Å 12:53 UT 195 Å 13:06 UT
195 Å 13:37 UT 195 Å 13:46 UT 195 Å 14:00 UT
195 Å 14:18 UT 195 Å 14:31 UT 195 Å 14:40 UT
195 Å 14:53 UT 195 Å 15:12 UT 195 Å 15:25 UT
195 Å 15:34 UT

195 Å:

195 Å 13:37 UT 195 Å 13:46 UT 195 Å 14:00 UT 195 Å 14:18 UT 195 Å 14:31 UT
195 Å 14:40 UT 195 Å 14:53 UT 195 Å 15:12 UT 195 Å 15:25 UT 195 Å 15:34 UT
195 Å 15:47 UT 195 Å 16:06 UT 195 Å 16:18 UT 195 Å 16:28 UT 195 Å 16:41 UT
195 Å 16:59 UT 195 Å 17:12 UT 195 Å 17:21 UT 195 Å 17:34 UT 195 Å 17:53 UT
195 Å 18:05 UT

195 Å running difference images:

195 Å 12:44 UT 195 Å 12:53 UT 195 Å 13:06 UT 195 Å 13:37 UT 195 Å 13:46 UT
195 Å 14:00 UT 195 Å 14:18 UT 195 Å 14:31 UT 195 Å 14:40 UT 195 Å 14:53 UT
195 Å 15:12 UT 195 Å 15:25 UT 195 Å 15:34 UT

Summary page of these events.

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This page was created 27 April 1997.
Last revised
Author and Curator: Barbara J. Thompson