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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-03-07T17:24Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
GOES: CCOR-1
Activity ID: 2026-03-07T17:24:00-CME-001 (version 2)
Note Keyword:
GAP: Data gap
Source Signature Keyword:
OFL: Moving/Opening field lines
Morphology Keyword:
Note: CME first seen to the ENE in SOHO LASCO C2 starting around 2026-03-07T17:24Z. It is also seen to the ENE in SOHO LASCO C3 and GOES CCOR-1. The front is very slow to start, so analysis is based on the propagation of the CME once it reaches the later frames in the FOV of SOHO LASCO C2. There is no good source candidate on the Earth-facing disk, so the source is most likely far-sided. There is some faint, minor, nearly continuous field line movement seen beyond the E limb in SDO AIA 171 for several hours before and after the start of the CME that could be related. 
Version 1 submitted on 2026-03-08T00:34Z by Elizabeth Juelfs
Version 2 submitted on 2026-03-09T15:37Z by Mary Aronne
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The List of CME Analysis already entered:
Event Type Catalog
Measurement TypeCME measurement type: Leading Edge (LE), Shock Front (SH), Right Hand Boundary (RHB), Left Hand Boundary (LHB), Black/White Boundary (BW), Prominence Core (COR), Disconnection Front (DIS), Trailing Edge (TE).
Prime?"primary flag" which is either True or False. If there are multiple CME analysis entries for a single CME, this flag would indicate which analysis is considered most accurate per measurement type. This is a helpful flag if you would like to download only one most accurate CME analysis per CME per Measurement Type
 Technique Long Lat Speed Type Half Width Time 21.5 Note WSA-ENLIL+Cone Result(s) Measured On Submitted By
CME Analysis M2M_CATALOG LE true Plane-of-sky NONE 23.0 390.0 S 17.0 2026-03-08T04:08Z Plane-of-sky measurement based on running difference imagery from SOHO LASCO C2/C3 and GOES CCOR-1. Not modeled Elizabeth Juelfs on 2026-03-08T00:35Z



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