DONKI Header

CCMC DONKI

DONKI: Menu Page

Go to:

 DONKI: View SW Activity
Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-03-12T15:48Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
GOES: CCOR-1
Activity ID: 2026-03-12T15:48:00-CME-001 (version 1)
Note Keyword:
DFL: Likely deflection of the event within the FOV
Faint: Faint event; may affect type assignment
GAP: Data gap
OVR: Event partially overlaps with another CME
Source Signature Keyword:
OFL: Moving/Opening field lines
Morphology Keyword:
O: Other
Note: CME observed to the E in SOHO LASCO C2 and faintly in GOES CCOR-1, too faint for LASCO C3 and not observed in STEREO A COR2 due to a data gap. The source is likely far-sided, observed only in GOES SUVI 284 as field line movement over the east limb starting around 2026-03-12T14:20Z. Partially overlaps with on-disk CME 2026-03-12T14:36Z, and fades after the first few frames in LASCO C2. 
Version 1 submitted on 2026-03-12T18:02Z 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 Plane-of-sky NONE -9.0 399.0 S 20.0 2026-03-13T00:50Z SOHO LASCO C2 only plane-of-sky due to no STEREO A COR2 to triangulate, and CME front becoming too faint in C2 past the earliest couple of frames to resolve in other coronagraphs' running difference imagery. Not modeled Tony Iampietro on 2026-03-12T18:03Z



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