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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2025-09-18T23:12Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2025-09-18T23:12:00-CME-001 (version 1)
Note Keyword:
Faint: Faint event; may affect type assignment
FOV: Front Bright front; may be evidence of pileup
Ha: Bright emission (likely H-alpha emission)
Source Signature Keyword:
OFL: Moving/Opening field lines
Morphology Keyword:
O: Other
Note: CME observed to the E in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2. The southern half of this feature is notably brighter, but the initially asymmetric front evens out further into the coronagraphs. The source appears to be far-sided around the equatorial east limb, only observed as some field line movement starting around 2025-09-18T22:42Z in GOES SUVI 171. 
Version 1 submitted on 2025-09-19T13:48Z by Tony Iampietro
A Notification with ID 20250919-AL-001 was sent on 2025-09-19T14:35Z

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 -105.0 -2.0 528.0 C 31.0 2025-09-19T05:51Z Triangulation between SOHO LASCO C2/C3 and STEREO A COR2. 1: Result 1 (2.0 AU)
Mars = 2025-09-23T16:00Z
Solar Orbiter = 2025-09-19T19:00Z
2: Result 2 (5.5 AU)
Psyche = 2025-09-25T12:00Z
Mars = 2025-09-23T16:00Z
Solar Orbiter = 2025-09-19T19:00Z
2025-09-19T11:57Z Tony Iampietro on 2025-09-19T13:50Z



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