EIT Data Corresponding to Magnetic Cloud Events

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

Possible WIND Magnetic Cloud Events, compiled by Ron Lepping:

Calendar Day           Date 
148.7-150.5 (1996)     May 27-29 
183.5-185.0            July 1-3
220.5-222.5            August 7-9
357-358                December 24-25 
10.0-11.8 (1997)       January 10-11, 1997 
40-42                  February 9-11, 1997

Note: This page is slowly being modified to include more images and explanations.
Possible earth-directed CME observed 7 February 1997 (estimated arrival time: 18 UT on the 10th of February)
Yohkoh dimming at CME onset associated with the eruption (from N. Gopalswamy and H. Hudson)
ISTP January 6-11, 1997 CME/Magnetic Cloud event home page
ISTP April 7-11, 1997 CME/Geospace home page

Upcoming work:

EIT Observations

January 1997 Magnetic Cloud:

Solar Observations of the January 1997 Magnetic Cloud Event

ISTP Sun-Earth Connection Event: January 6 - 11, 1997

May Magnetic Cloud:

Go to Barbara's May 1996 Magnetic Cloud Page

July Magnetic Cloud:

EIT 195 Å Fe XII Images for June 23 and 25 - is that a slight dimming in 195 where the filament erupted? It's difficult to tell - there is a slight decrease, but it could be the effect of solar rotation and a different line-of-sight. There are no other EIT images available during this period.

GOES X-ray flux for 22-June through 25-June 1996

GOES X-ray flux for 25-June through 28-June 1996

August Magnetic Cloud:

GOES X-ray flux for 1-August through 4-August 1996

December Magnetic Cloud:

EIT 195 Å Fe XII December 18-20 1996 gif movie of filament-associated activity.

Go to ISTP December 24 Magnetic Cloud - Solar Observations Page

This page was created 1997 February 03.
Last revised
Author and Curator: Barbara J. Thompson