Dual-Viewpoint CME Catalog from the SECCHI/COR Telescopes

This is a dual-viewpoint Coronal Mass Ejection (CME) catalog based on visual identifications of events in the SECCHI/COR2 telescopes from both STEREO spacecraft. The catalog extends from March 2007 (when the synoptic program was established) to September 2014 (when contact with STEREO-B was lost). The catalog is continually updated and will eventually include COR1 information as part of a recent NASA HGI award. It is described in detail in Vourlidas et al. (2017).

For questions and updates please contact Dr. Angelos Vourlidas at Solar-Researchnull@jhuapl.edu.

Brief Description

The catalog is accessed via the month-year matrix below. The number of events in each month are in parentheses. Clicking on the month cell reveals the list of events for that month along with their morphological and kinematic parameters (if available). Each event has a COR2-A and -B entry which is filled with '-999's if the event was undetected in that telescope. The kinematic parameters are derived either automatically via the supervised algorithm CORSET (event ID ending in 'c') or manually (event Id ending in 'm'). Details on the algorithm and parameter extraction are given in Balmaceda et al. (2017). The MVC Catalog is unique in providing a morphological classification for each event and viewpoint. The classification criteria are discussed in Vourlidas et al. (2017). The links in each column provide further information and/or data (e.g. filename lists, height-time points, etc.)

Column Descriptions

Col (1): STEREO Spacecraft
Col (2): Event ID. Ending denotes measurement method:
'c': CORSET; 'm' Manual; '': no measurements
Col (3): Date of first appearance in COR2
Col (4): Time of first appearance
Col (5): Morphology: 'F'= Flux Rope; 'L' = Loop; 'J'= jet; 'O'=Other; 'U'= Unknown; 'Z'=no detection; 'P'= Preceding CME; 'S'= Shock candidate
Col (6): angular separation of STEREO s/c (Deg)
Col (7): Central Position Angle of CME (CCW from Solar North)
Col (8): Angular Width (deg)
Col (9): Radial Speed (km/s)
Col (10): acceleration (km/s2)
Col (11): Expansion Speed (km/s)
Col (12): Expansion acceleration (km/s2)
Col (13): Additional Info: 'NULL' no info

3P 3-part structure CME
CS 'Current sheet'
COL Possible collision with previous CME
DFL Likely deflection of the event within the FOV
DPL CME exhibits dimpled front
Faint Faint event; may affect type assignment
FF Event fails/disappears before exiting COR2
FOV Front Bright front; may be evidence of pileup
GAP Data gap
Ha Bright emission (likely H-alpha emission)
KEY Keyhole-hole shaped CME
OFL Outflowing material at the back of the CME
OVR Event partially overlaps with another CME
PRM Prominence material (filamentary structures)
SB Streamer Blowout following CME
SEP Solar Energetic Particle event
SLB Side-lobe Operations
SUR Surge-like eruption









Click on a item above to view data.

Please note that this CME catalog is currently under development and revision.

Other COR2 CME Catalogs

There exist other SECCHI, and in particular COR2-based, CME catalogs. Some are based on automated detection algorithms and some are built manually. Below is a list with all the catalogs we are aware of along with some brief note. The list is subject to revision.

  • COR2 CME Catalog at the University of Göttingen (2007 – 2011). Manual. Contains list of 'best of' events appropriate for 3D reconstruction.
  • SEEDS COR2 CME Catalog at the George Mason University (2007 – present). Automated. Not dual-view detection ( COR2-A and B detections are made independently).
  • CACTus COR2 CME Catalog at the Naval Research Laboratory (2007 – present). Automated. Not dual view detection.

Other CME Catalogs

A list of catalogs based on single-viewpoint observations from the coronagraphs and imagers on board the STEREO and SOHO spacecraft.

 CACTus LASCO/C2 Catalog

Data Policy

The catalog and associated data are publicly available per the STEREO mission Data Management Plan and comprise part of the SECCHI team's higher level data products. If you use information or data from this catalog, we would appreciate the following acknowledgement:
"The STEREO/SECCHI/COR2 CME catalog is generated and maintained at JHUAPL, in collaboration with the NRL and GSFC, and is supported by NASA."


A. Vourlidas acknowledges support from NASA NNX16AH70G for the CME catalog creation and maintenance and is grateful to the NRL SECCHI team for technical assistance. L.A. Balmaceda was supported by FAPESP Projects 2014/23716-4 and 2013/03085-7 and wishes to thank JHUAPL for their hospitality during this fellowship. G. Stenborg was supported by NASA contract S-13631-Y to NRL. The website is supported by NASA and APL internal funds. The SECCHI data are produced by an international consortium of the NRL, LMSAL and NASA GSFC (USA), RAL and Univ. Birmingham (UK), MPS (Germany), CSL (Belgium), IOTA and IAS (France).