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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2024-04-18T03:12Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
Activity ID: 2024-04-18T03:12:00-CME-001 (version 1)
Source Location: S18E16
Active Region Number: 13638
Note Keyword:
COL: Possible collision with previous CME
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
PRM: Prominence material (filamentary structures)
Source Signature Keyword:
FLR: Flare
FIL: Filament eruption
OFL: Moving/Opening field lines
DIM: Dimming
Morphology Keyword:
O: Other
Note: Faint filament eruption to the SE seen in SOHO LASCO C2 and a few frames of C3. The source is a filament eruption starting at 2024-04-18T02:46Z from AR 3638, best observed in SDO AIA 304 and GOES SUVI 304 as outflowing dark material, deflecting southeastward as it travels. This eruption is paired with an M2.2-Class flare best seen in SDO AIA 131, which peaked at 2024-04-18T02:48Z. Slight dimming and field line movement observed in SDO AIA 171/193/211 as well. A wider front to the north of this one emerging at 2024-04-18T04:12Z is likely from this same eruption, measuring 230 km/s as a Plane-Of-Sky.
Submitted on 2024-04-18T21:58Z 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 |
-38.0 |
406.0 |
S |
12.0 |
2024-04-18T11:19Z |
Measurement made using the EUV-observed source at S18E16 as a basis, and only SOHO LASCO C2 imagery. The CME is not visible in SOHO LASCO C3 running difference imagery due to the faintness and direction into the pylon, and barely visible if at all in STEREO COR2A due to poor data quality mid-campaign (which has no effect on direct imagery visibility). |
Not modeled
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Tony Iampietro on 2024-04-18T22:01Z |
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