DONKI Header

Space Weather Database Of Notifications, Knowledge, Information (DONKI)

DONKI: Menu Page

Go to:

 DONKI: View SW Activity
Coronal Mass Ejection
Catalog: M2M_CATALOG
Start Time: 2025-04-09T23:36Z ( SOHO: LASCO/C2 )
All Detecting Spacecrafts:
SOHO: LASCO/C2
Activity ID: 2025-04-09T23:36:00-CME-001 (version 1)
Note Keyword:
Faint: Faint event; may affect type assignment
GAP: Data gap
Source Signature Keyword:
OFL: Moving/Opening field lines
Morphology Keyword:
O: Other
Note: Faint and narrow CME seen to the SW in SOHO LASCO C2; this CME becomes diffuse before leaving the C2 field of view. Source is uncertain, but may possibly be a very faint instance of field line opening seen around 2025-04-09T22:27Z in SDO AIA 171 on the SW limb at S30 with strong southern deflection. No STEREO A COR2 imagery was available in real time for this CME due to a data gap which began at 2025-04-09T18:53Z.

Submitted on 2025-04-10T02:24Z by Hannah Hermann

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) Submitted By
CME Analysis M2M_CATALOG LE true Plane-of-sky NONE -39.0 415.0 S 11.0 2025-04-10T08:15Z Plane-of-sky measurement taken using only C2 frames. Leading edge becomes diffuse before leaving C2 field of view. No STEREO A COR2 imagery was available in real time for this CME due to a data gap which began at 2025-04-09T18:53Z. Not modeled Hannah Hermann on 2025-04-10T02:26Z



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