DONKI Header

CCMC DONKI

DONKI: Menu Page

Go to:

 DONKI: View SW Activity
Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-07-20T20:12Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-07-20T20:12:00-CME-001 (version 1)
Source Location: N15E35
Note Keyword:
DFL: Likely deflection of the event within the FOV
Source Signature Keyword:
DIM: Dimming
Morphology Keyword:
O: Other
Note: Faint CME observed to the NE in SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2. The source for this CME is not clearly defined but supported by triangulation around N33E42. This may be observed an area of weak dimming centered around N15E35 starting around 2026-07-20T19:39Z in SDO AIA 193, following a from AR 14493 responsible for CME: 2026-07-20T19:53Z. 
Version 1 submitted on 2026-07-21T00:46Z by Tony Iampietro
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 33.0 570.0 C 12.0 2026-07-21T02:10Z Triangulation between SOHO LASCO C2/C3 and STEREO A COR2. 1: Result 1 (2.0 AU)
2026-07-20T23:47Z Tony Iampietro on 2026-07-21T00:47Z



All directly linked activities:
No Linked Activity Found.


Comments by users:
0 comment received.
Insert title here

The Moon to Mars Space Weather Analysis Office and other entities provide data to DONKI as a courtesy to the community.
By visiting this site, you acknowledge that you understand and agree to the Important Disclaimer Notice

If you are looking for the official U.S. Government forecast for space weather, please go to NOAA's Space Weather Prediction Center (https://swpc.noaa.gov). This "Experimental Research Information" consists of preliminary NASA research products and should be interpreted and used accordingly.

Curator: Chiu Wiegand | NASA Official: Dr. Masha Kuznetsova | Privacy and Security Notices | Accessibility | CCMC Data Policy