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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-03-04T00:48Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
GOES: CCOR-1
Activity ID: 2026-03-04T00:48:00-CME-001 (version 1)
Note Keyword:
GAP: Data gap
Source Signature Keyword:
OFL: Moving/Opening field lines
Morphology Keyword:
Note: CME first seen to the NW in SOHO LASCO C2 starting at 2026-03-04T00:48Z. This CME is also seen to the NW in SOHO LASCO C3 and GOES CCOR-1. It is covered by a real-time data gap in STEREO A COR2. The source of this CME is possibly related to some faint field line movement seen beyond the NW in SDO AIA 193 beginning around 2026-03-04T00:00Z. 
Version 1 submitted on 2026-03-04T02:38Z 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 28.0 855.0 C 12.0 2026-03-04T05:07Z Updated measurement using later frames of SOHO LASCO C3 imagery. A plane-of-sky measurement was made using a longitude of 90 degrees due to the far-sided and therefore unknown source location. Not modeled Mattie Anastopulos on 2026-03-04T13:07Z
CME Analysis M2M_CATALOG LE false Plane-of-sky NONE 24.0 454.0 S 17.0 2026-03-04T08:20Z Preliminary measurement based on early frames from SOHO LASCO C2/C3 and GOES CCOR-1. Not modeled Elizabeth Juelfs on 2026-03-04T02:39Z



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