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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-07-28T03:00Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
Activity ID: 2026-07-28T03:00:00-CME-001 (version 1)
Source Location: S10W60
Note Keyword:
Faint: Faint event; may affect type assignment
Source Signature Keyword:
OFL: Moving/Opening field lines
DIM: Dimming
Morphology Keyword:
Note: Narrow CME visible to the SW in SOHO LASCO C2/C3. Not clearly visible in GOES CCOR-1 or STEREO A COR2 imagery. The potential source may be an eruption starting at 2026-07-28T00:21Z at S10W60 as best seen in GOES SUVI 304 imagery. The eruption is also seen as dimming and moving field lines in STEREO A EUV 195 imagery. 
Version 1 submitted on 2026-07-28T14:52Z 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 60.0 -11.0 490.0 S 10.0 2026-07-28T09:58Z Measurement based on source location using SOHO LASCO C2/C3 imagery. The CME is likely narrower than 10 degrees half-width based on SOHO LASCO imagery. 1: Result 1 (2.0 AU)
BepiColombo = 2026-07-29T07:52Z
STEREO A = 2026-07-31T08:00Z
Mary Aronne on 2026-07-28T14:53Z



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