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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-03-03T15:00Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
GOES: CCOR-1
Activity ID: 2026-03-03T15:00:00-CME-001 (version 1)
Note Keyword:
Faint: Faint event; may affect type assignment
GAP: Data gap
OFL: Outflowing material at the back of the CME
Source Signature Keyword:
Morphology Keyword:
Note: Faint CME first seen to the NNW in SOHO LASCO C2 starting around 2026-03-03T15:00Z. It is also seen to the NNW in GOES CCOR-1 and very faintly in SOHO LASCO C3. This CME is covered by a real-time data gap in STEREO A COR2. The front is seen for a couple frames in SOHO LASCO C3, but the CME has dissipated enough by the time it reaches the FOV of SOHO LASCO C3 that it is not trackable for measurement. There is not separate source signature for this CME, and it is most likely outflow following CME: 2026-03-03T11:01Z. 
Version 1 submitted on 2026-03-04T01:53Z by Elizabeth Juelfs
No Notification has been sent for this activity yet.

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 72.0 245.0 S 15.0 2026-03-04T05:52Z Plane-of-sky measurement based on running difference imagery from SOHO LASCO C2 and GOES CCOR-1. Not modeled Elizabeth Juelfs on 2026-03-04T01:54Z



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