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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-01-31T05:12Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-01-31T05:12:00-CME-001 (version 2)
Source Location: S04W107
Active Region Number: 14351
Note Keyword:
DPL: CME exhibits dimpled front
Ha: Bright emission (likely H-alpha emission)
OFL: Outflowing material at the back of the CME
Source Signature Keyword:
FLR: Flare
PEA: Post eruption arcade
FIL: Filament eruption
OFL: Moving/Opening field lines
BR: Brightening
DIM: Dimming
EUVW: EUV Wave
Morphology Keyword:
FS: Flux Rope and Shock Candidate
Note: Fast asymmetric CME with a front best seen in SOHO LASCO imagery but also clear in difference imagery in all coronagraphs (SOHO LASCO C2/C3, STEREO A COR2 and GOES CCOR-1) and associated with the occluded C6.0 flare from former Active Region 14351 (S04W107) from behind the W limb in SDO, peaking at 2026-01-31T04:54Z and an eruption with opening of field lines seen in SDO AIA 193/171 starting 2026-01-31T04:50Z. The flare and eruption are best seen (as dimming, post-eruptive arcades and an EUV wave) in STEREO A EUV 195/304 in the Active Region 14351 (located behind the W limb in SDO, at S04W55 as seen from STEREO A), making the source location coordinates S04W107.
Version 1 submitted on 2026-01-31T15:23Z by Anna Chulaki
Version 2 submitted on 2026-01-31T20:33Z by Anna Chulaki
A Notification with ID
20260131-AL-002 was sent on 2026-01-31T19:07Z
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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 |
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CME Analysis
|
M2M_CATALOG |
LE
|
true |
SWPC_CAT |
107.0 |
-8.0 |
1027.0 |
O |
33.0 |
2026-01-31T09:11Z |
Analysis based on the location of the source (C6.0 flare and eruption in the former Active Region 14351, seen in STEREO A EUV imagery after 2026-01-31T04:50Z. |
1: Result 1 (2.0 AU)
Juice = 2026-02-03T05:24Z
STEREO A = 2026-02-03T06:00Z
2: Result 2 (5.5 AU)
Europa Clipper = 2026-02-05T16:49Z
Juice = 2026-02-03T04:42Z
Lucy = 2026-02-11T12:00Z
STEREO A = 2026-02-03T06:00Z
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Anna Chulaki on 2026-01-31T15:25Z |
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