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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2024-01-12T22:24Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
Activity ID: 2024-01-12T22:24:00-CME-001 (version 2)
Note Keyword:
FOV: Front Bright front; may be evidence of pileup
HAL: Halo CME
OFL: Outflowing material at the back of the CME
OVR: Event partially overlaps with another CME
Source Signature Keyword:
PEA: Post eruption arcade
FIL: Filament eruption
OFL: Moving/Opening field lines
DIM: Dimming
Morphology Keyword:
OS: Other and Shock Candidate
Note: Partial asymmetric SE halo CME with what is likely a wider shock and a narrower brighter bulk. The CME overlaps (in coronagraphs) with an earlier slower CME in the East and possibly another faint slow CME to the South. The exact source location of this CME is likely close to the SE limb, most likely behind the limb, as indicated by a large prominence eruption seen in AIA/SUVI 304 starting 2024-01-12T21:15Z on/behind SE limb also corresponding to a fast opening of field lines likely behind the SE limb in AIA 193, as well as field lines movement/opening in AIA 171 in the SE starting ~21:23Z. However, there are also small ejecta movements and a relatively minor dimming/post eruptive arcades seen (~S25E68) close to the SE limb in AIA 193/171 and EUVI A 195. This later signature seems to be weaker than the prominence and fast opening of field lines behind the limb. We do not see an EUV wave on the disk, so the possible shock is most likely backsided. Whether the bulk is backsided is a question.

Submitted on 2024-01-14T13:03Z by Anna Chulaki

No Notification has been sent for this activity yet.

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) Submitted By
CME Analysis M2M_CATALOG SH true SWPC_CAT -117.0 -13.0 900.0 C 43.0 2024-01-13T02:22Z Very approximate analysis of wider fainter shock based on the assumption that the shock of this event is mostly backsided, based on the coronal signatures of it. Because we do not know the exact farsided source location this analysis is based on fit with two coronagraphs. Not modeled Anna Chulaki on 2025-02-07T18:45Z
CME Analysis M2M_CATALOG LE true SWPC_CAT -117.0 -24.0 895.0 C 23.0 2024-01-13T02:21Z Approximate analysis based on the assumption that the CME is backsided, as the associated filament eruption seems to happen behind the limb. The fit with two coronagraphs is approximate. 1: Result 1 (2.0 AU)
Anna Chulaki on 2025-02-07T18:44Z
CME Analysis M2M_CATALOG LE false Plane-of-sky NONE -32.0 731.0 C 27.0 2024-01-13T03:13Z Initial plane-of-sky analysis based on SOHO imagery only. Not modeled Anna Chulaki on 2025-02-07T18:43Z
CME Analysis M2M_CATALOG LE false SWPC_CAT -68.0 -32.0 730.0 C 25.0 2024-01-13T03:10Z Very tentative/unlikely measurement based on the assumption that this CME is front-sided (source minor dimming ~S25E68 in AIA 193). Not modeled Anna Chulaki on 2025-02-07T18:41Z



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