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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-03-20T12:23Z ( STEREO A: SECCHI/COR2 )
All Detecting Spacecrafts:
STEREO A: SECCHI/COR2
SOHO: LASCO/C2
SOHO: LASCO/C3
GOES: CCOR-1
Activity ID: 2026-03-20T12:23:00-CME-001 (version 1)
Note Keyword:
HAL: Halo CME
Source Signature Keyword:
Morphology Keyword:
FS: Flux Rope and Shock Candidate
Note: CME visible to the west in STEREO A COR2 and as a partial halo in SOHO LASCO C2/C3 and GOES CCOR-1. Overlaps in the field of view with CME: 2026-03-20T12:38Z. The source is likely farsided, and believed to likely be a separate CME from CME: 2026-03-20T12:38Z based on its appearance in STEREO A COR2 imagery.
Version 1 submitted on 2026-03-20T17:27Z by Mary Aronne
A Notification with ID
20260320-AL-002 was sent on 2026-03-20T18:59Z
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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 |
-177.0 |
3.0 |
802.0 |
C |
35.0 |
2026-03-20T16:40Z |
Updated measurement based on STEREO A COR2 and SOHO LASCO C2 which have the clearest view of the separate features between CME: 2026-03-20T12:23Z and CME: 2026-03-20T12:38Z. |
1: Result 1 (2.0 AU)
Solar Orbiter = 2026-03-21T10:15Z
Mars = 2026-03-25T14:00Z
Psyche = 2026-03-26T02:00Z
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Elizabeth Juelfs on 2026-03-20T17:52Z |
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CME Analysis
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M2M_CATALOG |
LE
|
false |
SWPC_CAT |
-177.0 |
-3.0 |
827.0 |
C |
25.0 |
2026-03-20T16:01Z |
Preliminary measurement based on the best fit between SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2 imagery in SWPC_CAT. |
Not modeled
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2026-03-20T17:24Z |
Mary Aronne on 2026-03-20T17:28Z |
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All directly linked activities: |
| No Linked Activity Found. |
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