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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2025-04-17T15:12Z ( SOHO: LASCO/C2 )

All Detecting Spacecrafts:

SOHO: LASCO/C2

SOHO: LASCO/C3

STEREO A: SECCHI/COR2

Activity ID: 2025-04-17T15:12:00-CME-001 (version 2)

Note Keyword:

DFL: Likely deflection of the event within the FOV

Faint: Faint event; may affect type assignment

FF: Event fails/disappears before exiting COR2

GAP: Data gap

Source Signature Keyword:

PEA: Post eruption arcade

Morphology Keyword:

J: Jet

Note: Very narrow (with <10 deg half-width), faint, fast jet to the northeast in both coronagraphs (SOHO LASCO C2/C3, STEREO A COR2) mostly seen in running difference imagery (almost not noticeable in white light images). Possible coronal signature (for this likely backsided event) could be minor post-eruptive arcades seen in SDO AIA 304 peaking from behind the NE limb after 2025-04-17T14Z.

Version 1 submitted on 2025-04-18T12:38Z by Anna Chulaki
Version 2 submitted on 2025-04-18T16:12Z by Mary Aronne

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	-102.0	57.0	1069.0	O	12.0	2025-04-17T18:24Z	Approximate analysis based on the fit with two coronagraphs, setting the half-width to the swpc_cat tool's minimum 10 degrees. The CME is very narrow (narrower than 10 degrees half-width) so the speed could have been underestimated in this analysis.	Not modeled	Anna Chulaki on 2025-04-18T12:40Z

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