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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-03-04T02:12Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-03-04T02:12:00-CME-001 (version 1)
Source Location: S20E70
Note Keyword:
Source Signature Keyword:
FIL: Filament eruption
OFL: Moving/Opening field lines
Morphology Keyword:
Note: This CME is visible to the east/southeast in SOHO LASCO C2, GOES CCOR-1 and STEREO A COR2A imagery. This event is not seen in SOHO LASCO C3 imagery as it is obscured by the pylon. The source is likely related to a filament eruption centered near S20E70 starting around 2026-03-04T01:00Z as seen in SDO AIA 131/171/193/304 and GOES SUVI 131/171/195/284/304 imagery. A subsequent opening of field lines is visible over the southeast limb in SDO AIA 171/193 and GOES SUVI 171/195/284 imagery. 
Version 1 submitted on 2026-03-04T13:10Z by Mattie Anastopulos
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 SWPC_CAT -65.0 -39.0 314.0 S 18.0 2026-03-04T13:12Z Measurement based on the approximate source location and best fit between SOHO LASCO C2 and STEREO A COR2 imagery. 1: Result 1 (2.0 AU)
Mattie Anastopulos on 2026-03-04T13:11Z



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