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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-03-07T13:38Z ( STEREO A: SECCHI/COR2 )
All Detecting Spacecrafts:
STEREO A: SECCHI/COR2
Activity ID: 2026-03-07T13:38:00-CME-001 (version 1)
Note Keyword:
Faint: Faint event; may affect type assignment
Source Signature Keyword:
Morphology Keyword:
Note: A faint, narrow CME first seen to the SW in STEREO A COR2 starting around 2026-03-07T13:38Z. It is not seen in GOES CCOR-1 or SOHO LASCO C2/C3. A slow filament eruption on the SW limb in GOES SUVI 304 starting after 2026-03-07T09:30Z (and seen at the same time in STA EUV 304 close to the SW limb) was considered as a source candidate; however, there is too much time between this eruption and the start of the CME for this eruption to be the source. The source is most likely far-sided. 
Version 1 submitted on 2026-03-07T22:35Z 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) Measured On Submitted By
CME Analysis M2M_CATALOG LE true Plane-of-sky NONE -40.0 316.0 S 15.0 2026-03-08T00:11Z Speculative plane-of-sky measurement based on running difference imagery from STEREO A COR2. Not modeled Elizabeth Juelfs on 2026-03-07T22:37Z



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