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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2023-05-09T01:25Z ( SOHO: LASCO/C2 )

All Detecting Spacecrafts:

SOHO: LASCO/C2

SOHO: LASCO/C3

Activity ID: 2023-05-09T01:25:00-CME-001 (version 3)

Note Keyword:

FF: Event fails/disappears before exiting COR2

Source Signature Keyword:

Morphology Keyword:

Note: This CME is faint but visible to the west in SOHO LASCO C2/C3 imagery. It is not seen in STEREO A COR2 coronagraph imagery due to a data gap. The source is uncertain, but it is possible this event is associated with an eruption from AR 13299 starting around 2023-05-09T00:15Z seen as a large dimming region in SDO AIA 193 imagery, opening of field lines in SDO AIA 171 and brightening as seen in SDO AIA 131 and 304 imagery. Otherwise, the source is likely far-sided.

Version 1 submitted on 2023-05-09T19:48Z by Mattie Anastopulos
Version 2 submitted on 2023-05-09T20:09Z by Mattie Anastopulos
Version 3 submitted on 2023-05-09T20:10Z by Mattie Anastopulos

No Notification has been sent for this activity yet.

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	Plane-of-sky	NONE	5.0	330.0	S	34.0	2023-05-09T11:33Z	Plane-of-sky measurement using a longitude of -90 degrees since the source of this event is uncertain. A measurement was taken with a longitude of -17 degrees, based on an eruption from Active Region 3299, which produced a speed of 748 km/s. However, it is difficult to tell if this event is associated with that eruption since there is no STEREO A COR2 data during this time.	Not modeled	Mattie Anastopulos on 2023-05-09T20:09Z

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