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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2024-04-18T02:48Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
Activity ID: 2024-04-18T02:48:00-CME-001 (version 3)
Source Location: N01E20
Active Region Number: 13645
Note Keyword:
DFL: Likely deflection of the event within the FOV
DPL: CME exhibits dimpled front
Faint: Faint event; may affect type assignment
OFL: Outflowing material at the back of the CME
OVR: Event partially overlaps with another CME
Source Signature Keyword:
OFL: Moving/Opening field lines
DIM: Dimming
Morphology Keyword:
O: Other
Note: Faint partial halo CME seen to the NE in all coronagraphs. The source is likely a massive dimming region (spanning approximately E35->E15 and S10->N12) following some weak field line and loop breaking (observed across wavelengths SDO AIA 131/171/193/211) from AR 3645, which begins around 2024-04-17T22:09Z and dims until about 2024-04-18T02:09Z. A slow rise in x-ray flux is noted in SDO AIA 131 and GOES real-time x-ray flux over this time but no "flare" occurs. This dimming notably begins well before the start time giving some lower confidence, but this region gave an excellent visual fit in SWPC_CAT during the measurement process compared to other longitudes or Plane-Of-Sky.
Submitted on 2024-04-18T21:53Z by Tony
Iampietro
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) |
Submitted By |
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CME Analysis
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M2M_CATALOG |
LE
|
true |
SWPC_CAT |
-25.0 |
14.0 |
349.0 |
S |
39.0 |
2024-04-18T12:30Z |
Measurement made using the center of the EUV-observed source dimming (N01E25) as a basis and finding a good fit with some northern deflection. Only using SOHO LASCO C2/C3 frames with the lack of usable STEREO COR2A frames due to a poor data quality mid-campaign. |
1: Result 1 (2.0 AU)
Earth = 2024-04-21T14:00Z
STEREO A = 2024-04-21T08:00Z
Psyche = 2024-04-26T00:00Z
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Tony Iampietro on 2024-04-18T21:41Z |
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