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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2025-04-27T15:36Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
Activity ID: 2025-04-27T15:36:00-CME-001 (version 1)
Note Keyword:
Faint: Faint event; may affect type assignment
Source Signature Keyword:
Morphology Keyword:
Note: Narrow CME to the N in SOHO LASCO C2 starting at 2025-04-27T15:36Z. CME is also visible to the N in SOHO LASCO C3 but is not seen in STEREO A COR2. The start time is somewhat ambiguous as the CME is very faint and less defined in SOHO LASCO C2. There is no good source candidate on the Earth-facing disk. However, a couple of possibilities are some minor movement along a filament centered about 15 degrees N of AR 14073 beginning around 2025-04-27T14:36Z and a minor puff of ejecta from approximately N40E30 beginning around 2025-04-27T15:16Z.

Submitted on 2025-04-27T23:22Z by Elizabeth Juelfs

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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 85.0 616.0 C 10.0 2025-04-27T22:51Z POS measurement based only on running difference imagery from SOHO LASCO C3. The CME is very difficult to track in SOHO LASCO C2 due to faintness. POS measurement chosen due to lack of good source candidate. No triangulation available. Not modeled Elizabeth Juelfs on 2025-04-27T23:24Z



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