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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-05-07T01:26Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-05-07T01:26:00-CME-001 (version 1)
Source Location: N20E110
Note Keyword:
3P: 3-part structure CME
FOV: Front Bright front; may be evidence of pileup
Ha: Bright emission (likely H-alpha emission)
OFL: Outflowing material at the back of the CME
PRM: Prominence material (filamentary structures)
Source Signature Keyword:
PEA: Post eruption arcade
FIL: Filament eruption
OFL: Moving/Opening field lines
BR: Brightening
Morphology Keyword:
FS: Flux Rope and Shock Candidate
Note: CME observed to the NE in SOHO LASCO C2/C3 and GOES CCOR-1 (slightly pylon obscured), and to the N in STEREO A COR2. The source is a far-sided active region over the east limb from Earth's perspective, with directly observed brightening by Solar Orbiter EUVI 304 around N20E110 at 2026-05-07T00:01Z. Best observed in SDO AIA 171/193/211 observed as rising field lines as early as 2026-05-06T22:54Z, erupting more strongly after around 2026-05-07T00:04Z, with filament ejecta in SDO AIA 304. This triggers a small sympathetic eruption to its south starting around 2026-05-07T01:09Z in SDO AIA 171/193/211. A post-eruptive arcade and brightening reaching x-ray flux level of C4.5 at 2026-05-07T02:15Z was observed peeking over the limb.
Version 1 submitted on 2026-05-07T11:51Z by Tony Iampietro
	
A Notification with ID 20260507-AL-001 was sent on 2026-05-07T12:29Z
A Notification with ID 20260507-AL-002 was sent on 2026-05-07T13:13Z

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 -112.0 31.0 798.0 C 32.0 2026-05-07T05:57Z BULK analysis, excellent triangulation between SOHO LASCO C2/C3 and STEREO A COR2 with the source directly observed in Solar Orbiter EUI over the east limb ~N20E110. The bulk front presents wider in SOHO versus STEREO, so the SOHO width is used. 1: Result 1 (2.0 AU)
Solar Orbiter = 2026-05-09T10:00Z
2: Result 2 (5.5 AU)
Juno = 2026-05-21T00:00Z
Solar Orbiter = 2026-05-09T10:00Z
2026-05-07T11:37Z Melissa Kane on 2026-05-07T19:00Z
CME Analysis M2M_CATALOG SH true SWPC_CAT -112.0 31.0 795.0 C 43.0 2026-05-07T06:01Z SHOCK measurement based on approximate source location and best fit between SOHO LASCO C3 and STEREO A COR2. 1: Result 1 (2.0 AU)
Solar Orbiter = 2026-05-09T09:56Z
2: Result 2 (5.5 AU)
Solar Orbiter = 2026-05-09T10:04Z
Melissa Kane on 2026-05-07T19:00Z
CME Analysis M2M_CATALOG SH false SWPC_CAT -123.0 17.0 737.0 C 50.0 2026-05-07T06:29Z Preliminary shock analysis with only STEREO A COR2, using the far-sided source longitude as a basis and fitting the faint shock feature, which is difficult to resolve against the image background. Analysis subject to change with further review. 1: Result 1 (2.0 AU)
Solar Orbiter = 2026-05-09T04:13Z
BepiColombo = 2026-05-08T02:00Z
Tony Iampietro on 2026-05-07T12:20Z



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