DONKI Header

CCMC DONKI

DONKI: Menu Page

Go to:

 DONKI: View SW Activity
Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-05-12T15:24Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
GOES: CCOR-1
Activity ID: 2026-05-12T15:24:00-CME-001 (version 1)
Source Location: N14W78
Active Region Number: 14432
Note Keyword:
DFL: Likely deflection of the event within the FOV
PRM: Prominence material (filamentary structures)
Source Signature Keyword:
FIL: Filament eruption
Morphology Keyword:
Note: CME first seen to the W in SOHO LASCO C2 starting around 2026-05-12T15:24Z. It is also seen to the W in SOHO LASCO C3 and GOES CCOR-1. The source of this CME is most likely an eruption from AR 14432 (N14W78) beginning around 2026-05-12T14:57Z. The ejecta can best be seen in SDO AIA 304 and STEREO A EUVI 195 and appears to be directed westward. 
Version 1 submitted on 2026-05-12T17:05Z by Elizabeth Juelfs
A Notification with ID 20260512-AL-001 was sent on 2026-05-12T18:12Z

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 78.0 7.0 762.0 C 13.0 2026-05-12T20:00Z Measurement based on visible source location. 1: Result 1 (2.0 AU)
Juice = 2026-05-18T06:00Z
Parker Solar Probe = 2026-05-14T03:00Z
STEREO A = 2026-05-15T16:00Z
Elizabeth Juelfs on 2026-05-12T17:06Z



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