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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2021-09-04T23:53Z ( STEREO A: SECCHI/COR2 )
All Detecting Spacecrafts:
STEREO A: SECCHI/COR2
Activity ID: 2021-09-04T23:53:00-CME-001 (version 3)
Source Location: N21E06
Active Region Number: 12864
Note Keyword:
Source Signature Keyword:
FLR: Flare
Morphology Keyword:
Note: The start time of the CME is possibly earlier than indicated (updated from original time of 2021-09-05T01:09Z). There was missing data in COR2A before the indicated start time. The eruption was associated with a B4.5 flare that started at 2021-09-04T21:06Z and peaked at 2021-09-04T21:33Z. There was EUV wave signature associated with the eruption and visible in SDO/AIA 193.

Submitted on 2021-09-07T17:04Z by Carina Alden

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 SWPC_CAT -5.0 2.0 274.0 S 10.0 2021-09-05T10:51Z Speed estimated from COR2A difference images was used in the analysis. C2 and C3 coronagraph do not clearly show the CME. A minor impact is expected at Earth. However, this is a very slow CME and the arrival may not be easily detected. 1: Result 1 (2.0 AU)
Earth = 2021-09-09T12:00Z
Michelangelo Romano on 2021-09-10T16:45Z



All directly linked activities:
2021-09-04T21:06:00-FLR-001
FLR Type: B4.5


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