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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2025-12-12T05:36Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2025-12-12T05:36:00-CME-001 (version 1)
Source Location: S18W73
Active Region Number: 14296
Note Keyword:
Source Signature Keyword:
FLR: Flare
OFL: Moving/Opening field lines
BR: Brightening
Morphology Keyword:
Note: This CME is visible to the southwest in SOHO LASCO C2/C3, GOES CCOR-1, STEREO A COR2 imagery. The source is likely related to an M2.0 flare from Active Region 14296 (S18W73) starting around 2025-12-12T05:00Z as seen in GOES SUVI 131/171/195/284/304 and STEREO A EUVI 195/304 imagery. Field line movement is observed over the southwest limb in GOES SUVI 171/195/304 imagery and dimming is observed southeast of the eruption site in STEREO A EUVI 195 imagery. 
Version 1 submitted on 2025-12-12T13:14Z 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 70.0 -27.0 370.0 S 35.0 2025-12-12T14:28Z Measurement based on the source location and best fit between SOHO LASCO C3, GOES CCOR-1, and STEREO A COR2 imagery. 1: Result 1 (2.0 AU)
STEREO A = 2025-12-15T08:00Z
2: Result 2 (5.5 AU)
Europa Clipper = 2025-12-21T18:00Z
STEREO A = 2025-12-15T08:00Z
Mattie Anastopulos on 2025-12-12T13:17Z



All directly linked activities:
2025-12-12T04:50:00-FLR-001
FLR Type: M2.0


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