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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2025-05-12T19:00Z ( SOHO: LASCO/C2 )

All Detecting Spacecrafts:

SOHO: LASCO/C2

GOES: CCOR-1

Activity ID: 2025-05-12T19:00:00-CME-001 (version 1)

Note Keyword:

FF: Event fails/disappears before exiting COR2

Source Signature Keyword:

OFL: Moving/Opening field lines

Morphology Keyword:

O: Other

Note: Faint CME seen to the NW in SOHO LASCO C2 and GOES CCOR-1, the front fades in the LASCO C2 field of view. The source may be some weak field line movement over the NW limb in SDO AIA 171 starting around 2025-05-12T17:00Z.

Version 1 submitted on 2025-05-13T02:09Z by Tony Iampietro

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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)	Submitted By
CME Analysis	M2M_CATALOG	LE	true	Plane-of-sky	NONE	42.0	463.0	S	10.0	2025-05-13T02:54Z	Plane-of-sky measurement due to uncertain source and visibility only in the first 4 frames of SOHO LASCO C2, as it fades into the running difference background afterwards.	Not modeled	Tony Iampietro on 2025-05-13T02:10Z

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