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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2025-03-16T21:12Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
Activity ID: 2025-03-16T21:12:00-CME-001 (version 1)
Source Location: N35E35
Active Region Number: 14032
Note Keyword:
Faint: Faint event; may affect type assignment
FOV: Front Bright front; may be evidence of pileup
HAL: Halo CME
Source Signature Keyword:
PEA: Post eruption arcade
OFL: Moving/Opening field lines
BR: Brightening
DIM: Dimming
Morphology Keyword:
F: Flux Rope
FS: Flux Rope and Shock Candidate
L: Loop
LS: Loop and Shock Candidate
Note: Partial halo CME with bulk seen to the north-northeast in SOHO LASCO C2 imagery and more towards the northeast in STEREO A COR2 imagery with faint, very wide shock developing in later frames with invisible leading edge containing lobes to the north and east in both SOHO and STEREO A imagery. The presumed source is an eruption from near the vicinity of Active Region 4032 (N35E35) seen as a dimming in SDO AIA 193 as early as 2025-03-16T18:04Z, disappearing loop structure in SDO AIA 171, and brightening in SDO AIA 304. There are two eruptions seen in GOES SUVI 304 imagery emanating from the same area, one seen at 18:49Z and another which appears more Earth-directed at 20:49Z. Triangulation using SOHO and STEREO A imagery seems to more strongly support Earth-directedness and deflection westward than the EUV imagery.

Submitted on 2025-03-16T23:33Z by Chris Stubenrauch

A Notification with ID 20250316-AL-002 was sent on 2025-03-16T23:49Z
A Notification with ID 20250318-AL-001 was sent on 2025-03-18T03:01Z

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 -17.0 15.0 403.0 S 42.0 2025-03-17T05:43Z Measurement of the leading edge/bulk using two spacecraft out to 8 solar radii which supports westward deflection. Triangulation does not support the source location being near the original source location N35E35. Not yet seen in SOHO C3. 1: Result 1 (2.0 AU)
Earth = 2025-03-19T20:00Z
BepiColombo = 2025-03-17T23:58Z
Europa Clipper = 2025-03-22T04:00Z
Lucy = 2025-03-22T00:00Z
Mars = 2025-03-21T20:00Z
Solar Orbiter = 2025-03-18T04:00Z
STEREO A = 2025-03-20T02:00Z
2: Result 2 (2.0 AU)
Earth = 2025-03-20T00:26Z
BepiColombo = 2025-03-17T23:54Z
Solar Orbiter = 2025-03-18T17:41Z
Europa Clipper = 2025-03-22T00:00Z
Lucy = 2025-03-22T00:00Z
Mars = 2025-03-21T20:00Z
STEREO A = 2025-03-20T13:30Z
Chris Stubenrauch on 2025-03-17T00:08Z
CME Analysis M2M_CATALOG SH true SWPC_CAT -13.0 11.0 455.0 S 46.0 2025-03-17T03:46Z Very low confidence two spacecraft measurement of very faint shock front, which is hardly seen in running difference imagery. Attached WSA-ENLIL+Cone simulation was executed in support of SEP models and should not be used for CME trajectory analysis, potentially representing an overestimate of potential impacts relative to observations. 1: Result 1 (2.0 AU)
Earth = 2025-03-19T15:00Z
BepiColombo = 2025-03-17T20:40Z
Solar Orbiter = 2025-03-18T01:36Z
STEREO A = 2025-03-19T22:30Z
Europa Clipper = 2025-03-22T02:00Z
Lucy = 2025-03-21T22:00Z
Mars = 2025-03-21T16:00Z
Chris Stubenrauch on 2025-03-17T00:08Z



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