DONKI Header

CCMC DONKI

DONKI: Menu Page

Go to:

DONKI: View SW Activity

Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2026-06-29T09:00Z ( GOES: CCOR-1 )

All Detecting Spacecrafts:

GOES: CCOR-1

STEREO A: SECCHI/COR2

Activity ID: 2026-06-29T09:00:00-CME-001 (version 1)

Note Keyword:

Source Signature Keyword:

OFL: Moving/Opening field lines

Morphology Keyword:

Note: CME visible to the east in GOES CCOR-1 and faintly to the west in STEREO A COR2 imagery. The CME is not seen in real-time in SOHO LASCO C2/C3 due to a downlink data gap. The source is likely farsided as seen as moving field lines in SDO AIA 171 in ISWA and SDO AIA 193 starting around 2026-06-29T06:57Z. An estimated M4.0 class solar flare was observed on the farside from the point of view of the Solar Orbiter/STIX, located around longitude -158, at 2026-06-29T07:29Z.

Version 1 submitted on 2026-06-29T12:21Z by Mary Aronne

A Notification with ID 20260629-AL-001 was sent on 2026-06-29T13:30Z

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	-144.0	-8.0	631.0	C	18.0	2026-06-29T13:11Z	Measurement based on the best fit between GOES CCOR-1 and STEREO A COR2 imagery in SWPC_CAT. The leading edge is faint and unclear in running difference imagery, and this measurement is approximate.	1: Result 1 (2.0 AU) Solar Orbiter = 2026-07-01T18:11Z		Mary Aronne on 2026-06-29T12:22Z

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