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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-03-30T03:24Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-03-30T03:24:00-CME-001 (version 1)
Source Location: S27E45
Active Region Number: 14405
Note Keyword:
FOV: Front Bright front; may be evidence of pileup
GAP: Data gap
Ha: Bright emission (likely H-alpha emission)
HAL: Halo CME
CHP: CME - Coronal Hole Proximity
Source Signature Keyword:
FLR: Flare
OFL: Moving/Opening field lines
BR: Brightening
DIM: Dimming
EUVW: EUV Wave
Morphology Keyword:
FS: Flux Rope and Shock Candidate
Note: Large partial-halo CME visible to the SE in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2 imagery. The source is an X1.4 flare from Active Region 14405 (S27E45) peaking at 2026-03-30T03:19Z. The source is associated with brightening, dimming, moving/opening field lines, and EUV wave as seen in GOES SUVI 195, 304, 284, 131, 094, and 171 starting around 2026-03-30T02:56Z.
Version 1 submitted on 2026-03-30T04:06Z by Carina Alden
	
A Notification with ID 20260330-AL-003 was sent on 2026-03-30T04:13Z
A Notification with ID 20260330-AL-004 was sent on 2026-03-30T04:45Z
A Notification with ID 20260330-AL-005 was sent on 2026-03-30T13:23Z
A Notification with ID 20260330-AL-006 was sent on 2026-03-30T15:46Z
A Notification with ID 20260330-AL-008 was sent on 2026-03-30T21:35Z

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 -43.0 -22.0 1689.0 O 46.0 2026-03-30T05:19Z Final analysis of the brighter bulk of this CME based on the location of the X-class flare and associated eruption, made with fully available coronagraph imagery from SOHO LASCO C2/C3 and STEREO A COR2 and a couple of GOES CCOR-1 images. 1: Result 1 (2.0 AU)
Earth = 2026-03-31T15:07Z
OSIRIS-APEX = 2026-04-02T07:00Z
2: Result 2 (5.5 AU)
Earth = 2026-03-31T15:04Z
Juno = 2026-04-12T06:00Z
Lucy = 2026-04-10T12:00Z
OSIRIS-APEX = 2026-04-02T07:00Z
2026-03-30T12:10Z Anna Chulaki on 2026-03-30T12:55Z
CME Analysis M2M_CATALOG SH true SWPC_CAT -22.0 -15.0 1719.0 O 58.0 2026-03-30T05:20Z A very speculative analysis of the faint shock of this CME using mostly the SOHO LASCO imagery since there was no good fit with two coronagraphs (SOHO LASCO and STEREO A COR2). 1: Result 1 (2.0 AU)
Earth = 2026-03-31T09:56Z
OSIRIS-APEX = 2026-03-31T23:50Z
2026-03-30T12:29Z Anna Chulaki on 2026-03-30T12:54Z
CME Analysis M2M_CATALOG LE false SWPC_CAT -27.0 -14.0 1845.0 O 44.0 2026-03-30T05:07Z VERY PRELIMINARY MEASUREMENT based on first few frames in SOHO LASCO C2/C3 and STEREO A COR2 imagery. 1: Result 1 (2.0 AU)
Earth = 2026-03-31T10:40Z
OSIRIS-APEX = 2026-04-01T12:00Z
STEREO A = 2026-04-02T02:00Z
2: Result 2 (5.5 AU)
Earth = 2026-03-31T10:35Z
OSIRIS-APEX = 2026-04-01T12:00Z
STEREO A = 2026-04-02T02:00Z
Carina Alden on 2026-03-30T04:07Z



All directly linked activities:
2026-03-30T02:47:00-FLR-001
FLR Type: X1.4


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