DONKI Header

CCMC DONKI

DONKI: Menu Page

Go to:

 DONKI: View SW Activity
Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-05-08T04:49Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
SOHO: LASCO/C3
STEREO A: SECCHI/COR2
GOES: CCOR-1
Activity ID: 2026-05-08T04:49:00-CME-001 (version 1)
Note Keyword:
COL: Possible collision with previous CME
OVR: Event partially overlaps with another CME
PRM: Prominence material (filamentary structures)
Source Signature Keyword:
FIL: Filament eruption
Morphology Keyword:
Note: CME first seen to the NE in SOHO LASCO C2 starting at 2026-05-08T04:49Z. Is it also seen to the NE in SOHO LASCO C3 and GOES CCOR-1 and to the NNE in STEREO A COR2. The source of this CME is most likely an eruption best seen over the NE limb in SDO AIA 304 beginning as early as 2026-05-08T03:24Z. There are two ejections of material with most of the ejecta appear to fall back to the disk. This CME likely overtakes the earlier, slower CME: 2026-05-08T02:48Z. 
Version 1 submitted on 2026-05-08T12:15Z 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 -106.0 24.0 656.0 C 19.0 2026-05-08T10:25Z Measurement based on best fit among SOHO LASCO C2/C3, GOES CCOR-1, and STEREO A COR2. 1: Result 1 (2.0 AU)
Elizabeth Juelfs on 2026-05-08T12:17Z



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