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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2025-04-21T08:12Z ( SOHO: LASCO/C2 )

All Detecting Spacecrafts:

SOHO: LASCO/C2

STEREO A: SECCHI/COR2

Activity ID: 2025-04-21T08:12:00-CME-001 (version 1)

Note Keyword:

Faint: Faint event; may affect type assignment

FF: Event fails/disappears before exiting COR2

Source Signature Keyword:

OFL: Moving/Opening field lines

BR: Brightening

Morphology Keyword:

Note: CME first visible to the SE in SOHO LASCO C2 starting at 2025-04-21T08:12Z. Also seen to the SE for a few frames in STEREO A COR2 but is likely obscured by the pylon in SOHO LASCO C3. This CME is much easier to see in running difference imagery. There is no definitive source for this CME, but there is some general movement from the vicinity of AR 14068 best seen in SDO AIA 193 for a couple hours prior to the CME start time.

Version 1 submitted on 2025-04-21T16:18Z by Elizabeth Juelfs

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)	Submitted By
CME Analysis	M2M_CATALOG	LE	true	SWPC_CAT	-80.0	-31.0	208.0	S	22.0	2025-04-22T01:00Z	Measurement based on best fit between SOHO LASCO C2 and STEREO A COR2.	Not modeled	Elizabeth Juelfs on 2025-04-21T16:19Z

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