CCMC DONKI
Go to:
|
High Speed Stream
Catalog: M2M_CATALOG Event Time: 2025-09-22T01:12Z ( ACE: SWEPAM ) Event End Time: Peak Solar Wind Speed (km/s): 630.0 Date of first appearance of coronal hole in EUV at east limb: Note: Characterized by an increase in solar wind speed from ~300 km/s at 2025-09-22T01:12Z to 400 km/s at 2025-09-22T10:39Z, eventually reaching peak sustained speeds around 630 km/s. A subsequent increase in temperature is observed alongside the increase in speed, which begins to increase gradually around 2025-09-22T01:00Z and more dramatically around 2025-09-22T09:45Z where it increases to 331,000 K. Additionally, this signature is preceded by an increase in density and amplification of magnetic field components. The source of this event is a coronal hole centered near latitude N25 which reached the central meridian on 2025-09-18. Version 1 submitted on 2025-09-22T11:25Z by Mattie Anastopulos Version 2 submitted on 2025-09-24T17:57Z by Mary Aronne Version 3 submitted on 2025-09-25T14:35Z by Mary Aronne Version 4 submitted on 2025-09-25T15:47Z by Anna ChulakiNo Notification has been sent for this activity yet. |
||
All directly linked activities: |
||
|
||
| Comments by users: | ||
| 0 comment received. |
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