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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2025-08-21T16:12Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2025-08-21T16:12:00-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: CME observed to the NNE in SOHO LASCO C2/C3 and GOES CCOR-1, and observed to the NNW in STEREO A COR2. No direct source is observed for this CME, it is likely outflow from the large far-sided halo CME 2025-08-21T08:23Z, corroborated with far-sided coronagraph triangulation in swpc_cat. 
Version 1 submitted on 2025-08-22T01:36Z 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 SWPC_CAT -144.0 51.0 583.0 C 17.0 2025-08-21T22:41Z Triangulated measurement between SOHO LASCO C3 and STEREO A COR2. Not modeled 2025-08-22T01:37Z Tony Iampietro on 2025-08-22T01:37Z



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