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Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-08-16T19:48Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-08-16T19:48:00-CME-001 (version 1)
Source Location: N10W42
Active Region Number: 14506
Note Keyword:
GAP: Data gap
Source Signature Keyword:
FLR: Flare
Morphology Keyword:
Note: CME first seen to the W in SOHO LASCO C2 starting at 2026-08-16T20:03Z. It is also seen to the W in SOHO LASCO C3 and GOES CCOR-1 and to the NE in STEREO A COR2. The majority of this CME was missed in real time by SOHO LASCO C3 due to a data gap between downlinks. This CME is associated with a C8.2 class flare from AR 14506 (N10W42) that peaked at 2026-08-16T19:28Z. The flare is best seen in SDO AIA 131. 
Version 1 submitted on 2026-08-16T22:42Z by Elizabeth Juelfs
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) Measured On Submitted By
CME Analysis M2M_CATALOG LE true SWPC_CAT 42.0 22.0 362.0 S 45.0 2026-08-17T05:41Z Measurement based on best fit among SOHO LASCO C2, GOES CCOR-1, and STEREO A COR2 as well as on visible source location. 1: Result 1 (2.0 AU)
Earth = 2026-08-20T12:00Z
Parker Solar Probe = 2026-08-19T03:34Z
STEREO A = 2026-08-20T06:00Z
Juice = 2026-08-21T00:00Z
Mars = 2026-08-23T04:00Z
OSIRIS-APEX = 2026-08-21T00:00Z
Psyche = 2026-08-23T04:00Z
Elizabeth Juelfs on 2026-08-16T22:43Z



All directly linked activities:
2026-08-16T19:01:00-FLR-001
FLR Type: C8.2


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