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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-08-14T07:38Z ( STEREO A: SECCHI/COR2 )
All Detecting Spacecrafts:
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-08-14T07:38:00-CME-001 (version 1)
Source Location: S17W57
Active Region Number: 14503
Note Keyword:
GAP: Data gap
Source Signature Keyword:
FLR: Flare
PEA: Post eruption arcade
OFL: Moving/Opening field lines
DIM: Dimming
Morphology Keyword:
Note: CME first seen as a halo to the SE by STEREO A COR2 beginning at 2026-08-14T07:38Z, as well as by GOES CCOR-1 in later frames. This CME was not visible in SOHO LASCO C2/C3 in real-time due to a data gap which began at 2026-08-14T04:48Z. The source of this event is a C4.1 flare from Active Region 14503 (S17W57) seen peaking at 2026-08-14T07:01Z in SDO AIA 131. Field line opening, dimming and post eruptive arcades are also visible in SDO AIA 94, 171, 193, STEREO A EUVI 195 and GOES SUVI 284. 
Version 1 submitted on 2026-08-14T11:44Z by Melissa Kane
A Notification with ID 20260814-AL-002 was sent on 2026-08-14T12:27Z

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) Measured On Submitted By
CME Analysis M2M_CATALOG LE true SWPC_CAT 54.0 -24.0 636.0 C 29.0 2026-08-14T12:28Z Measurement based on approximate source location and best fit in STEREO A COR2 and GOES CCOR-1. 1: Result 1 (2.0 AU)
Mars = 2026-08-19T20:00Z
Parker Solar Probe = 2026-08-16T02:00Z
Psyche = 2026-08-19T23:00Z
STEREO A = 2026-08-17T12:00Z
Melissa Kane on 2026-08-14T11:45Z



All directly linked activities:
2026-08-14T06:38:00-FLR-001
FLR Type: C4.1


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