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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2025-09-11T08:53Z ( STEREO A: SECCHI/COR2 )
All Detecting Spacecrafts:
STEREO A: SECCHI/COR2
SOHO: LASCO/C2
GOES: CCOR-1
Activity ID: 2025-09-11T08:53:00-CME-001 (version 6)
Source Location: S40E05
Note Keyword:
DFL: Likely deflection of the event within the FOV
Faint: Faint event; may affect type assignment
HAL: Halo CME
OVR: Event partially overlaps with another CME
Source Signature Keyword:
FIL: Filament eruption
DIM: Dimming
Morphology Keyword:
F: Flux Rope
Note: Narrow CME seen to the SE in STEREO A COR2 closely following the fainter CME: 2025-09-11T07:53Z. It is seen as a faint, asymmetrical and messy partial halo to the SSE in SOHO LASCO C2. The source is likely the complex eruption of a southern filament mostly seen in SDO AIA 193 as a faint dimming and ejecta and lasting/developing for hours. The filament seems to be centered very approximately around S40E05 but the filament stretches (mostly along latitude) at least from S40E45 to S30W05. There is also a more western, fainter, feature of this CME seen to the W in SOHO LASCO C2 but it is hard to fit in the analysis. There are also potential one or two follow-up fronts in coronagraphs following this CME.
Version 1 submitted on 2025-09-11T12:35Z by Anna Chulaki
Version 2 submitted on 2025-09-11T17:12Z by Anna Chulaki
Version 3 submitted on 2025-09-11T17:14Z by Anna Chulaki
Version 4 submitted on 2025-09-11T17:17Z by Anna Chulaki
Version 5 submitted on 2025-09-11T17:34Z by Anna Chulaki
Version 6 submitted on 2025-09-11T23:02Z by Mary Aronne
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
|
M2M_CATALOG |
LE
|
true |
SWPC_CAT |
-3.0 |
-26.0 |
423.0 |
S |
25.0 |
2025-09-11T17:12Z |
Very approximate analysis of the complex front based on the fit with SOHO LASCO, STEREO A COR2 and GOES CCOR-1 coronagraphs, and on the location of the source eruption. |
1: Result 1 (2.0 AU)
Earth = 2025-09-14T10:00Z
OSIRIS-APEX = 2025-09-14T11:30Z
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Anna Chulaki on 2025-09-11T16:52Z |
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CME Analysis
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M2M_CATALOG |
LE
|
false |
SWPC_CAT |
-5.0 |
-26.0 |
340.0 |
S |
15.0 |
2025-09-11T18:39Z |
Approximate initial analysis with early imagery based on the fit with two coronagraphs (SOHO LASCO C2/C3 and STEREO A COR2) and on the source (eruption of the southern filament). There might be a bit of a northern deflection from the latitude of the source (S35-40). |
1: Result 1 (2.0 AU)
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2025-09-11T12:30Z |
Anna Chulaki on 2025-09-11T17:39Z |
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