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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-03-17T10:53Z ( STEREO A: SECCHI/COR2 )
All Detecting Spacecrafts:
STEREO A: SECCHI/COR2
Activity ID: 2026-03-17T10:53:00-CME-001 (version 2)
Source Location: S14E10
Active Region Number: 14392
Note Keyword:
OFL: Outflowing material at the back of the CME
Source Signature Keyword:
FLR: Flare
OFL: Moving/Opening field lines
BR: Brightening
DIM: Dimming
Morphology Keyword:
Note: Narrow CME visible to the southeast in STEREO A COR2. The CME is not visible in GOES CCOR-1 or SOHO LASCO C2/C3 imagery. The source may be an M1.3 flare starting at 2026-03-17T08:55Z seen in GOES-Secondary SUVI 131 imagery. Dimming and moving field lines can be seen in GOES SUVI 195 around S14E10 and in STEREO A EUV 195 near the southeast limb. 
Version 1 submitted on 2026-03-17T15:36Z by Mary Aronne
Version 2 submitted on 2026-03-17T15:37Z by Mary Aronne
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 -10.0 -14.0 287.0 S 10.0 2026-03-17T22:31Z Measurement based on the potential source location using STEREO A COR2 imagery only. 1: Result 1 (2.0 AU)
Earth = 2026-03-20T18:00Z
2: Result 2 (2.0 AU)
Earth = 2026-03-20T06:00Z
BepiColombo = 2026-03-19T03:00Z
OSIRIS-APEX = 2026-03-20T22:00Z
Mary Aronne on 2026-03-17T15:37Z



All directly linked activities:
2026-03-17T08:55:00-FLR-001
FLR Type: M1.3


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