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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-03-15T10:36Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
Activity ID: 2026-03-15T10:36:00-CME-001 (version 1)
Source Location: S15E35
Active Region Number: 14392
Note Keyword:
GAP: Data gap
Source Signature Keyword:
FLR: Flare
DIM: Dimming
Morphology Keyword:
Note: This CME is visible to the southeast in SOHO LASCO C2 for a few frames before becoming too diffuse to observe. This event is not seen in GOES CCOR-1 or STEREO A COR2 imagery due to data gaps starting at 2026-03-14T23:15Z and 2026-03-14T12:09Z, respectively. The source is an M1.0 flare and eruption from Active Region 14392 (centered near S15E35) starting around 2026-03-15T09:30Z as seen in GOES SUVI 131/171/195/284/304 imagery. Dimming is observed northeast of the eruption site in SDO AIA 195/284 imagery shortly after the flare is observed. 
Version 1 submitted on 2026-03-15T15:09Z 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 -35.0 -27.0 275.0 S 13.0 2026-03-15T21:55Z Measured longitude based on the source location. Due to a data gap in STEREO A COR2 imagery, a triangulated measurement was not available and the measured parameters may vary slightly as a result. 1: Result 1 (2.0 AU)
Mattie Anastopulos on 2026-03-15T15:11Z



All directly linked activities:
2026-03-15T09:21:00-FLR-001
FLR Type: M1.0


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