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DONKI: View SW Activity
Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-08-20T18:48Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
STEREO A: SECCHI/COR2
Activity ID: 2026-08-20T18:48:00-CME-001 (version 2)
Note Keyword:
PRM: Prominence material (filamentary structures)
Source Signature Keyword:
FIL: Filament eruption
Morphology Keyword:
Note: CME first seen to the WSW in SOHO LASCO C2 starting at 2026-08-20T18:48Z. It is also seen to the WSW in SOHO LASCO C3 and GOES CCOR-1 and to the SW in STEREO A COR2. The source of this CME is a large filament eruption seen near the SW limb in STEREO A EUVI 304 starting as early as 2026-08-20T18:15Z.
Version 1 submitted on 2026-08-20T19:50Z by Elizabeth Juelfs
Version 2 submitted on 2026-08-20T20:27Z by Elizabeth Juelfs
A Notification with ID
20260820-AL-006 was sent on 2026-08-20T21:21Z
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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
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true |
SWPC_CAT |
133.0 |
-16.0 |
1040.0 |
O |
43.0 |
2026-08-20T22:09Z |
Updated leading edge measurement based on best fit among SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2. |
1: Result 1 (2.0 AU)
BepiColombo = 2026-08-21T10:15Z
Mars = 2026-08-24T12:28Z
Psyche = 2026-08-24T09:38Z
STEREO A = 2026-08-23T04:00Z
2: Result 2 (5.5 AU)
BepiColombo = 2026-08-21T10:09Z
Mars = 2026-08-24T12:14Z
Psyche = 2026-08-24T09:15Z
Juno = 2026-09-05T12:00Z
STEREO A = 2026-08-23T04:00Z
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Elizabeth Juelfs on 2026-08-20T20:27Z |
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CME Analysis
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M2M_CATALOG |
LE
|
false |
SWPC_CAT |
126.0 |
-14.0 |
1105.0 |
O |
39.0 |
2026-08-20T21:57Z |
Very PRELIMINARY measurement based on three frames from SOHO LASCO C2 and one from STEREO A COR2. |
Not modeled
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Elizabeth Juelfs on 2026-08-20T19:52Z |
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