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DONKI: View SW Activity
Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-09-10T20:12Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
Activity ID: 2026-09-10T20:12:00-CME-001 (version 2)
Note Keyword:
3P: 3-part structure CME
GAP: Data gap
Ha: Bright emission (likely H-alpha emission)
Source Signature Keyword:
FIL: Filament eruption
OFL: Moving/Opening field lines
Morphology Keyword:
F: Flux Rope
L: Loop
Note: Bright loop CME first seen to the NW by SOHO LASCO C2 beginning at 2026-09-10T20:12Z, as well as by SOHO LASCO C3 and STEREO A COR2 in later frames. This CME is not visible in GOES CCOR-1 as it is obscured by the pylon. The source of this event is a filament eruption seen near N50W120 in STEREO A EUVI 304, as well as to the NNW by GOES SUVI 304 beginning at approx. 2026-09-10T19:15Z. Field line opening is also visible in SDO AIA 171 and GOES SUVI 284.
Version 1 submitted on 2026-09-10T22:17Z by Melissa Kane
Version 2 submitted on 2026-09-11T01:39Z by Melissa Kane
No Notification has been sent for this activity yet.
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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 |
122.0 |
51.0 |
554.0 |
C |
40.0 |
2026-09-11T02:59Z |
Updated measurement based on approximate source location and best fit in STEREO A COR2 and SOHO LASCO C2/C3. |
1: Result 1 (2.0 AU)
2: Result 2 (2.0 AU)
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Melissa Kane on 2026-09-11T01:38Z |
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CME Analysis
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M2M_CATALOG |
LE
|
false |
SWPC_CAT |
159.0 |
22.0 |
775.0 |
C |
31.0 |
2026-09-11T00:48Z |
Measurement based on approximate source location and best fit in SOHO LASCO C2/C3. |
1: Result 1 (2.0 AU)
2: Result 2 (5.5 AU)
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Melissa Kane on 2026-09-10T22:18Z |
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