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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2025-09-05T07:38Z ( STEREO A: SECCHI/COR2 )
All Detecting Spacecrafts:
STEREO A: SECCHI/COR2
SOHO: LASCO/C2
SOHO: LASCO/C3
GOES: CCOR-1
Activity ID: 2025-09-05T07:38:00-CME-001 (version 1)
Note Keyword:
Faint: Faint event; may affect type assignment
Source Signature Keyword:
Morphology Keyword:
O: Other
Note: Extremely faint and diffuse CME seen to the SSW in SOHO LASCO C2/C3 and GOES CCOR-1 and to the SW in STEREO A COR2. The source is likely on the farside; there is no source discernable in SDO AIA or STEREO A EUVI imagery, and triangulation suggests a farsided source location. 
Version 1 submitted on 2025-09-06T01:27Z by Hannah Hermann
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 155.0 -42.0 550.0 C 15.0 2025-09-05T14:15Z Best fit measurement using a few frames of SOHO LASCO C2 and STEREO A COR2. The leading edge was somewhat visible, but too diffuse to reliably track in GOES CCOR-1. 1: Result 1 (2.0 AU)
Hannah Hermann on 2025-09-06T01:28Z



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