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DONKI: View SW Activity
Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-06-18T13:23Z ( STEREO A: SECCHI/COR2 )
All Detecting Spacecrafts:
STEREO A: SECCHI/COR2
Activity ID: 2026-06-18T13:23:00-CME-001 (version 2)
Note Keyword:
PRM: Prominence material (filamentary structures)
Source Signature Keyword:
FIL: Filament eruption
OFL: Moving/Opening field lines
BR: Brightening
Morphology Keyword:
O: Other
Note: CME observed to the SW only in STEREO A COR2. Two close fronts appear identical and traveling together at 2026-06-18T13:23Z and 2026-06-18T13:53Z; as such without a second source eruption this CME entry serves as tracking both together with the leading-most edge 2026-06-18T13:23Z. The source is likely a filament eruption from former AR 14466 on the far-side from Earth, located around N05W140 at this time, observed in STEREO A EUVI 304 starting at 2026-06-18T11:45Z as the filament brightening and then disappearing.
Version 1 submitted on 2026-06-18T17:02Z by Tony Iampietro
Version 2 submitted on 2026-06-18T20:18Z by Carina Alden
A Notification with ID
20260618-AL-004 was sent on 2026-06-18T18:33Z
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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 |
140.0 |
-18.0 |
592.0 |
C |
15.0 |
2026-06-18T19:01Z |
STEREO A COR2 only analysis of the leading-most edge, using W140 as the approximate longitude of the source observed near STEREO A's west limb. The parameters, particularly longitude, could easily vary within a few degrees with any deflection of the eruption. |
1: Result 1 (2.0 AU)
Mars = 2026-06-22T08:00Z
Psyche = 2026-06-22T12:00Z
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2026-06-18T17:04Z |
Carina Alden on 2026-06-18T20:18Z |
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All directly linked activities: |
| No Linked Activity Found. |
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