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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2025-02-21T21:48Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
Activity ID: 2025-02-21T21:48:00-CME-001 (version 1)
Note Keyword:
Source Signature Keyword:
Morphology Keyword:
L: Loop
Note: Faint, wide, multi-front streamer blowout CME seen to the NW in SOHO LASCO C2/C3. A data gap in STEREO A COR2 from 2025-02-21T15:53Z to 2025-02-22T03:23Z completely covers this CME. The source is not discernable on the Earth-facing disk and is likely farsided.

Submitted on 2025-02-22T22:24Z by Hannah Hermann

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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 78.0 380.0 S 36.0 2025-02-22T07:35Z Plane-of-sky measurement using several frames of SOHO LASCO C2 and C3. Tricky to track the same leading edge between C2 and C3, since there are several slow loops that emerge in C2 and eventually merge into one brighter loop by the time C3's field of view is reached. There is also a data gap in STEREO A COR2 from 2025-02-21T15:53Z to 2025-02-22T03:23Z which completely covers this CME. Not modeled Hannah Hermann on 2025-02-22T22:26Z



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