DONKI Header

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

DONKI: Menu Page

Go to:

DONKI: View SW Activity
CME Analysis Information (for CME activity ID: 2025-02-21T21:48:00-CME-001)
Catalog: M2M_CATALOG
Data Level: 0 (0=real-time, 1=real-time and checked by supervising forecaster, 2=retrospective science level data analysis)
Use as primary measurement: true
Measurement Technique: Plane-of-sky
Detecting Instruments:
SOHO: LASCO/C2
SOHO: LASCO/C3
Image Type: running difference
Speed (km/s): 380.0
Speed measured at height (Rs): 10.0
Type: S
Direction (LON/LAT in HEEQ): None Entered / 78.0
Half Angular Width (degree): 36.0
Minor Half-width (degree): None Entered
Tilt (degree): None Entered
Time@21.5: 2025-02-22T07:35Z
Info/Session URL: None Entered
Note:
Plane-of-sky measurement using several frames of SOHO LASCO C2 and C3. Tricky to track the same leading edge between C2 and C3, since there are several slow loops that emerge in C2 and eventually merge into one brighter loop by the time C3's field of view is reached. There is also a data gap in STEREO A COR2 from 2025-02-21T15:53Z to 2025-02-22T03:23Z which completely covers this CME.
Measurement Feature Code(s):
LE: Leading Edge
General Keyword(s):
Submitted on 2025-02-22T22:26Z by Hannah Hermann

No Notification has been sent for this activity yet.

All directly linked activities:
2025-02-21T21:48:00-CME-001


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