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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2024-01-30T21:12Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
Activity ID: 2024-01-30T21:12:00-CME-001 (version 2)
Note Keyword:
3P: 3-part structure CME
DPL: CME exhibits dimpled front
FOV: Front Bright front; may be evidence of pileup
GAP: Data gap
HAL: Halo CME
Source Signature Keyword:
OFL: Moving/Opening field lines
Morphology Keyword:
FS: Flux Rope and Shock Candidate
Note: A full halo CME with more bulk to the East, best seen in SOHO LASCO C3 imagery and fully covered by the nighttime data gap in STEREO A COR2. Its source likely the faint movement of field lines/restructuring of magnetic field far behind the east limb seen best in SUVI 284 starting around 2024-01-30T20:30Z. There is a slight movement of field lines in AIA 171 in the SE as well at the time confirming the backsided source.

Submitted on 2024-01-31T16:25Z by Anna Chulaki

A Notification with ID 20240131-AL-002 was sent on 2024-01-31T14:25Z

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 LE true SWPC_CAT -153.0 -4.0 1014.0 O 45.0 2024-01-31T00:30Z Analysis of the more eastern, brighter portion of this CME, based on the likely backsided source location indicated by geoseismology data - a large active region seen for days in GONG farside imagery and at longitude ~-150 deg on 01-30. With the coronal signatures indicating a backsided region in the SW, we based our swpc_cat analysis with one coronagraph (SOHO LASCO) on the longitude of this likely active region and on the assumption that the half width of the CME is 45 degrees. This analysis is of course uncertain. 1: Result 1 (2.0 AU)
Parker Solar Probe = 2024-02-01T05:42Z
Anna Chulaki on 2024-01-31T16:58Z
CME Analysis M2M_CATALOG SH true SWPC_CAT -173.0 2.0 1306.0 O 45.0 2024-01-30T23:23Z Analysis of a wider, fainter shock front of this CME that forms a full halo in SOHO LASCO. Analysis is based on a good fit in swpc_cat in one coronagraph and the resulting longitude is more backsided than the assumed source location derived from GONG farside helioseismology imagery. 1: Result 1 (2.0 AU)
Parker Solar Probe = 2024-01-31T23:43Z
Anna Chulaki on 2025-02-07T01:09Z



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