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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2025-08-21T16:24Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
Activity ID: 2025-08-21T16:24:00-CME-001 (version 1)
Note Keyword:
OFL: Outflowing material at the back of the CME
OVR: Event partially overlaps with another CME
Source Signature Keyword:
Morphology Keyword:
O: Other
Note: Faint CME observed to the NE in SOHO LASCO C2/C3 and GOES CCOR-1, not observed in available STEREO A COR2 imagery. No direct source is observed for this CME, it is likely outflow from the large far-sided halo CME 2025-08-21T08:23Z. 
Version 1 submitted on 2025-08-22T01:54Z by Tony Iampietro
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 Plane-of-sky NONE 29.0 827.0 C 22.0 2025-08-21T20:41Z Plane-of-sky with only SOHO LASCO C3 due to faint visiblity in LASCO C2, the CME front is more evident further into the FOV. Not modeled 2025-08-22T01:55Z Tony Iampietro on 2025-08-22T01:55Z



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