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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2024-05-18T06:24Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
Activity ID: 2024-05-18T06:24:00-CME-001 (version 2)
Note Keyword:
GAP: Data gap
OVR: Event partially overlaps with another CME
Source Signature Keyword:
OFL: Moving/Opening field lines
Morphology Keyword:
L: Loop
Note: This slow CME is the first of three overlapping slow CMEs seen to the S/SW in SOHO LASCO C2/C3 and STEREO A COR2 imagery. The source is widely but slowly opening field lines on the Southern limb as seen in SDO AIA 171/193 and GOES SUVI 284, starting at about 2024-05-18T05:09Z. Prominence material - some of which lingers and some of which escapes - can be seen just beyond the S/SW limb in SDO AIA 304 and GOES SUVI 304 around 05:24Z. Imagery of this CME was affected by the scheduled calibration maneuvers which entailed a reduction in LASCO imagery cadence.

Submitted on 2024-05-18T18:27Z by Hannah Hermann

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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
CME Analysis M2M_CATALOG LE true SWPC_CAT 120.0 -71.0 341.0 S 38.0 2024-05-18T17:57Z The exact longitude is uncertain, though believed to be farsided based on UV imagery. Measurement taken using best fit between available SOHO LASCO C3 and STEREO A COR2 imagery. Imagery of this CME was affected by the reduction in LASCO cadence due to scheduled calibration maneuvers. Not modeled Hannah Hermann on 2024-05-18T18:27Z



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