DONKI Header

CCMC DONKI

DONKI: Menu Page

Go to:

 DONKI: View SW Activity
Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-04-02T18:48Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
Activity ID: 2026-04-02T18:48:00-CME-001 (version 1)
Source Location: N12W18
Active Region Number: 14404
Note Keyword:
Source Signature Keyword:
FLR: Flare
Morphology Keyword:
F: Flux Rope
Note: First of two part CME associated with an M3.5-class solar flare and subsequent filament eruption taking place between 2026-04-02T16:00Z and 21:00Z, the CME is narrow and seen to the northwest in SOHO LASCO C2 and not yet seen in STEREO A COR2A due to a data gap. There is a faint EUV wave seen best in SDO AIA 171 showing that the eruption may have been deflected slightly to the north. 
Version 1 submitted on 2026-04-02T22:23Z by Chris Stubenrauch
A Notification with ID 20260402-AL-006 was sent on 2026-04-02T23:23Z

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 18.0 17.0 831.0 C 10.0 2026-04-02T22:31Z Preliminary leading edge measurement out to 13 solar radii using SOHO C2 and GOES CCOR-1. 1: Result 1 (2.0 AU)
OSIRIS-APEX = 2026-04-05T22:00Z
2026-04-02T22:10Z Chris Stubenrauch on 2026-04-02T22:27Z



All directly linked activities:
2026-04-02T17:23:00-FLR-001
FLR Type: M3.5


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