mountain profile Institute for Astronomy University of Hawaii

CORIMP CME Catalog

SOHO / LASCO (under construction)

Realtime CME detections (latest available data)

Weekly CME detections (past 7 days)


Year Month
2016 Jan* Feb* Mar* Apr* May* Jun* Jul* Aug* Sep* Oct* Nov* Dec*
2015 Jan* Feb* Mar* Apr* May* Jun* Jul* Aug* Sep* Oct* Nov* Dec*
2014 Jan Feb Mar Apr May* Jun* Jul* Aug* Sep* Oct* Nov Dec*
2013 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2012 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2011 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2010 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2009 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2008 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2007 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2006 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2005 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2004 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2003 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2002 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2001 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2000 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

*Italic detections populated from realtime data.

(Missing detections currently being processed.)


The coronal image processing (CORIMP) CME catalog is generated from the automatic detection and tracking of CMEs in images from the Solar & Heliospheric Observatory (SOHO) Large Angle & Spectrometric Coronograph experiment (LASCO). The catalog utilises a normalising radial-graded filter (NRGF) that removes the steep gradient in coronal brightness. A deconvolution technique is used to remove the static background, separating dynamic and quiescent structures. A multiscale decomposition then results in a number of scales upon which the images can be automatically inspected for curvilinear features. Detection masks are generated to isolate CME structure, and a sequence of observations then reveal the changing CME kinematics and morphology.
(STEREO / SECCHI coming soon)

Note: A list of known bugs is compiled here. Please contact us if you find another.


A guide to using the catalog can be found here.


Details available in the following publications (please cite these two papers if using the catalog):

Futher details available in:

Sample image of a CORIMP CME detection in the combined LASCO/C2 & C3 frames on March 3, 2010. The yellow lines detail the detected CME structure, and the red points correspond to the outer features (in each instrument field-of-view) tracked to generate the CME height-time profile.
(Click for movie.)


To receive realtime CME alerts via email please contact Jason Byrne (now at RAL Space).
Alternatively you can follow the catalog on social media:
twitter.com/CMEcatalog.
facebook.com/CMEcatalog.

                  www.ifa.hawaii.edu/~jbyrne                 Twitter: @CMEcatalog