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DONKI: View SW Activity
Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-04-23T05:12Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-04-23T05:12:00-CME-001 (version 1)
Source Location: N16E40
Active Region Number: 14420
Note Keyword:
Source Signature Keyword:
FLR: Flare
OFL: Moving/Opening field lines
EUVW: EUV Wave
Morphology Keyword:
F: Flux Rope
FS: Flux Rope and Shock Candidate
Note: CME whose bulk is seen to the northeast with wider shock seen to due east in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2 coronagraphs in association with a long duration M1.2 class solar flare from AR4420 near N16E40. The EUV signature is characterized by a circular EUV wave and dimming signature during the eruption seen best in SDO AIA 193 and GOES SUVI 284.
Version 1 submitted on 2026-04-23T12:12Z by Chris Stubenrauch
A Notification with ID
20260423-AL-001 was sent on 2026-04-23T18:00Z
A Notification with ID
20260424-AL-007 was sent on 2026-04-24T16:08Z
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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 |
|
CME Analysis
|
M2M_CATALOG |
LE
|
true |
SWPC_CAT |
-40.0 |
16.0 |
889.0 |
C |
38.0 |
2026-04-23T08:59Z |
Leading edge of bulk of the left-most edge (in the ecliptic plane) of the CME bulk which is fairly asymmetric; the portion out of the ecliptic generally moves slower relative to the portion in the ecliptic. |
1: Result 1 (2.0 AU)
Earth = 2026-04-26T00:45Z
Europa Clipper = 2026-04-29T06:00Z
OSIRIS-APEX = 2026-04-27T03:00Z
2: Result 2 (5.5 AU)
Earth = 2026-04-26T00:02Z
Europa Clipper = 2026-04-29T06:00Z
Lucy = 2026-05-07T06:00Z
OSIRIS-APEX = 2026-04-27T03:00Z
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2026-04-23T12:00Z |
Chris Stubenrauch on 2026-04-23T12:17Z |
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CME Analysis
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M2M_CATALOG |
SH
|
true |
SWPC_CAT |
-40.0 |
-2.0 |
1046.0 |
O |
46.0 |
2026-04-23T08:27Z |
Measurement of the more symmetric shock front which much better fitting using triangulation relative to the asymmetric bulk. |
1: Result 1 (2.0 AU)
Earth = 2026-04-25T10:12Z
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2026-04-23T12:05Z |
Chris Stubenrauch on 2026-04-23T12:17Z |
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