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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2025-12-01T02:48Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2025-12-01T02:48:00-CME-001 (version 3)
Source Location: N23E90
Active Region Number: 14299
Note Keyword:
Ha: Bright emission (likely H-alpha emission)
HAL: Halo CME
PRM: Prominence material (filamentary structures)
Source Signature Keyword:
FLR: Flare
FIL: Filament eruption
OFL: Moving/Opening field lines
EUVW: EUV Wave
Morphology Keyword:
LS: Loop and Shock Candidate
Note: Halo CME first seen to the NE by SOHO LASCO C2 beginning at 2025-12-01T02:48Z, as well as by SOHO LASCO C3, STEREO A COR2, and GOES CCOR-1 in later frames. The source of this event is an X1.9 class flare which peaked at 2025-12-01T02:49Z located at approximately N23E90. This flare is visible in GOES SUVI 131, along with wide field line opening seen in GOES SUVI 171, 195 and 284. Filament ejecta is also visible from this region in association with the flare in GOES SUVI 304.
Version 1 submitted on 2025-12-01T04:04Z by Melissa Kane
Version 2 submitted on 2025-12-03T18:48Z by Mattie Anastopulos
Version 3 submitted on 2025-12-09T13:30Z by Mary Aronne
	
A Notification with ID 20251201-AL-003 was sent on 2025-12-01T04:13Z
A Notification with ID 20251201-AL-005 was sent on 2025-12-01T14:37Z
A Notification with ID 20251201-AL-006 was sent on 2025-12-01T16:54Z

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 -91.0 33.0 1903.0 O 38.0 2025-12-01T04:39Z Updated bulk measurement based on the approximate source location and best fit between SOHO LASCO C3 and STEREO A COR2 imagery. This measurement focuses on the bright portion of the CME and excludes the faint outer shock feature. 1: Result 1 (2.0 AU)
Parker Solar Probe = 2025-12-01T17:07Z
2: Result 2 (2.0 AU)
Parker Solar Probe = 2025-12-01T17:03Z
Mattie Anastopulos on 2025-12-01T13:41Z
CME Analysis M2M_CATALOG SH true SWPC_CAT -110.0 24.0 1960.0 O 51.0 2025-12-01T04:38Z SHOCK measurement focusing on the faint feature surrounding the bulk portion. Measured parameters based on the best fit between SOHO LASCO C3 and STEREO A COR2 imagery. 1: Result 1 (2.0 AU)
Parker Solar Probe = 2025-12-01T15:27Z
Mars = 2025-12-03T06:00Z
2025-12-01T12:25Z Mattie Anastopulos on 2025-12-01T13:41Z
CME Analysis M2M_CATALOG LE false SWPC_CAT -88.0 30.0 1837.0 O 39.0 2025-12-01T04:45Z PRELIMINARY BULK measurement based on source location and best fit in early frames of SOHO LASCO C2/C3, STEREO A COR2 and GOES CCOR-1. Not modeled 2025-12-01T04:03Z Melissa Kane on 2025-12-01T04:07Z



All directly linked activities:
2025-12-01T02:27:00-FLR-001
FLR Type: X1.9


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