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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-04-01T00:24Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
Activity ID: 2026-04-01T00:24:00-CME-001 (version 1)
Source Location: N16W12
Active Region Number: 14403
Note Keyword:
Faint: Faint event; may affect type assignment
FF: Event fails/disappears before exiting COR2
CHP: CME - Coronal Hole Proximity
Source Signature Keyword:
OFL: Moving/Opening field lines
Morphology Keyword:
O: Other
Note: Faint CME to the NW observed only in SOHO LASCO C2, as the front dissipates after a few frames. The source is likely AR 14403, with some weak field line movement in SDO AIA 171/193 observed starting around 2026-03-31T23:16Z. Although this source and faint front are not significant or easy to match alone, it matches the signature of prior CME 2026-03-31T11:24Z also from AR 14403, corroborating this source. 
Version 1 submitted on 2026-04-01T04:10Z by Tony Iampietro
A Notification with ID 20260401-AL-001 was sent on 2026-04-01T05:32Z
A Notification with ID 20260401-AL-002 was sent on 2026-04-01T08:12Z

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 SWPC_CAT 12.0 11.0 525.0 C 10.0 2026-04-01T05:37Z 3D SOHO LASCO C2 only analysis using W12 as the source longitude. CME front dissipates after 3 visible frames. 1: Result 1 (2.0 AU)
Earth = 2026-04-03T16:00Z
OSIRIS-APEX = 2026-04-04T02:00Z
2: Result 2 (5.5 AU)
Earth = 2026-04-03T16:00Z
Europa Clipper = 2026-04-07T09:00Z
OSIRIS-APEX = 2026-04-04T01:00Z
2026-04-01T03:49Z Tony Iampietro on 2026-04-01T04:12Z



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