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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-05-10T13:48Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-05-10T13:48:00-CME-001 (version 2)
Source Location: N21E65
Active Region Number: 14436
Note Keyword:
3P: 3-part structure CME
DPL: CME exhibits dimpled front
Ha: Bright emission (likely H-alpha emission)
HAL: Halo CME
CHP: CME - Coronal Hole Proximity
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: This CME is visible to the northeast as a partial halo seen in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2 imagery. The source is an M5.7 flare and eruption from Active Region 14436 (centered near N21E65) starting around 2026-05-10T13:30Z as seen in SDO AIA 131/171/193/304, GOES SUVI 131/171/195/284/304 and STEREO A EUVI 195/304 imagery. A wide opening of field lines is observed over the northeast limb in SDO AIA 171/193, GOES SUVI 171/195/284, and STEREO A EUVI 195 imagery with an EUV wave best seen in SDO AIA 193/211 and GOES SUVI 284 to the west towards a coronal hole. Additionally, post eruptive arcades begin to form in SDO AIA 171/193 and GOES SUVI 171/195 imagery starting around 2026-05-10T14:30Z.
Version 1 submitted on 2026-05-10T18:32Z by Mattie Anastopulos
Version 2 submitted on 2026-05-10T20:06Z by Carina Alden
A Notification with ID
20260510-AL-004 was sent on 2026-05-10T19:27Z
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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
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M2M_CATALOG |
LE
|
true |
SWPC_CAT |
-59.0 |
40.0 |
1347.0 |
O |
47.0 |
2026-05-10T16:13Z |
Measurement of the bulk feature based on the source location and best fit between SOHO LASCO C3 and STEREO A COR2 imagery. |
1: Result 1 (2.0 AU)
Earth = 2026-05-13T14:00Z
2: Result 2 (5.5 AU)
Earth = 2026-05-13T14:00Z
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Mattie Anastopulos on 2026-05-10T18:34Z |
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CME Analysis
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M2M_CATALOG |
SH
|
true |
SWPC_CAT |
-68.0 |
24.0 |
1540.0 |
O |
54.0 |
2026-05-10T15:59Z |
Parameters based on best fit of the SHOCK of the CME. This shock fit is slightly narrow of the entire visible shock as seen in STEREO A COR2 due to measurement constraints. These parameters have a higher degree of uncertainty due to proximity to a coronal hole and the nature of eruption. |
1: Result 1 (2.0 AU)
Earth = 2026-05-13T02:00Z
Europa Clipper = 2026-05-16T06:00Z
OSIRIS-APEX = 2026-05-14T14:00Z
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2026-05-10T19:10Z |
Carina Alden on 2026-05-10T19:16Z |
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