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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2024-04-21T15:37Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
Activity ID: 2024-04-21T15:37:00-CME-001 (version 2)
Source Location: S19W35
Active Region Number: 13638
Note Keyword:
DFL: Likely deflection of the event within the FOV
GAP: Data gap
Ha: Bright emission (likely H-alpha emission)
OFL: Outflowing material at the back of the CME
PRM: Prominence material (filamentary structures)
Source Signature Keyword:
FLR: Flare
FIL: Filament eruption
OFL: Moving/Opening field lines
Morphology Keyword:
F: Flux Rope
Note: CME seen to the S in SOHO LASCO C2/C3 only, due to a STEREO data gap. The source is an eruption from AR 3638 at S19W35, coupled with an M2.2-class flare which peaked at 2024-04-21T15:14Z best seen in SDO AIA 131. Also observed as the flare, field line movement, and dark filament material outflowing along field lines in SDO AIA 171/193/211/304 which began around 2024-04-21T15:08Z. The eruption is observed, and corroborated with swpc_cat measurements, to deflect south and east of this source lat/lon.
Submitted on 2025-03-12T17:11Z 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
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true |
SWPC_CAT |
15.0 |
-56.0 |
510.0 |
C |
22.0 |
2024-04-21T21:32Z |
Measurement made with only SOHO LASCO C3 imagery, as the CME was deflecting in C2 and not reliably trackable until it settled in the C3 FOV, alongside a data gap in STEREO COR2A. Initial lat/lon were based on the observed EUV source, and the deflection to the south and east was roughly estimated on the behavior of very similar CME 2024-04-22T06:12Z which featured all coronagraphs for triangulation. As such, some variance in the true lat/lon may be present with only one coronagraph measuring this fairly central longitude, with good confidence in the high southern latitude out of the ecliptic plane. |
Not modeled
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Tony Iampietro on 2025-03-12T17:16Z |
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