Introduction
Summary of LASCO/EIT What is LASCO? What is EIT? (external link) FAQ Realtime Images RealTime Movies (SOHO Movie Theater) Download LASCO Data Data Products Image Gallery Movie Gallery Processing Levels FITS Header Keywords Data Policy Wavelet images/movies Coronal Mass Ejections Eclipse Observations LASCO Calibration LASCO C3 Planet transits (via Sungrazer) Team and Operations Resources LASCO/C1 at MPAe (Germany) LASCO at LAS (France) LASCO Handbook Technical Notes Detailed Documentation Acronyms Solwind Images and CMEs SOHO Home page SOHO and SOHO Instruments Other Solar Satellites and Observatories |
LASCO Coronal Mass Ejections ListsCoronal Mass Ejections (CMEs) are massive (10^14 to 10^17 grams) bursts of plasma that are ejected from the sun. One of the scientific objectives of LASCO is to understand why these events occur. We do believe that they are caused by instabilities in the solar magnetic field, which is constantly evolving. Another scientific objective is to understand what effects CMEs have in interplanetary space and very importantly what effects CMEs have when they encounter the earth's environment. We know that the energetic CMEs will cause geomagnetic storms and possibly affect electric power transmission lines. We have generated a number of lists of CMEs - when they occurred and some parameters describing them. You can follow any of the links below. They should be used with caution, however, as the list may not be correct. We have tried to be as accurate as possible, but errors are possible. We strongly encourage users to look at the images and movies themselves to verify on their own the information in the catalog.
Final CME CatalogsDr. Chris St.Cyr completed updating the preliminary 1/1996-6/1998 lists by more detailed analysis of CMEs detected in the LASCO C2/C3 images. This is available at:Version 2 CME lists for 1/1996 - 6/1998
Dr. Seiji Yashiro has created a CME catalog for all LASCO C2 and C3 CME data. This includes Time-Height plots for velocities, and Javascript
Movies for each entry.
Halo CME archivesThe following .zip files are available for download:
PRELIMINARY LISTSA preliminary list of events has been generated with the LASCO data. This is not necessarily complete, but should contain all of the biggest events. The list is divided by year. These lists are provided for researchers with complementary data who wish to collaborate with members of the LASCO team.Over the course of the mission, the research scientists have maintained the CME lists. They are listed below:
Preliminary CME list for 1/1998 - 12/1998
Please note that LASCO CME lists are no longer updated by the LASCO operations team due to changes in funding of the mission. A comprehensive and up-to-date list of CME data is maintained at the CDAW site. |