DONKI Header

CCMC DONKI

DONKI: Menu Page

Go to:

DONKI: View SW Activity

High Speed Stream
Catalog: M2M_CATALOG
Event Time: 2026-09-11T16:57Z ( STEREO A: PLASTIC )

All Detecting Spacecrafts:

STEREO A: PLASTIC

STEREO A: IMPACT

Activity ID: 2026-09-11T16:57:00-HSS-001 (version 1)
Event End Time:
Peak Solar Wind Speed (km/s):
Date of first appearance of coronal hole in EUV at east limb:
Note: Coronal hole high speed stream characterized by an enhancement in magnetic field components reaching approximately 10nT, an increase followed by a decrease in density, and an increase in solar wind speed over 400 km/s. The candidate coronal hole crossed the central meridian as seen from STEREO A EUV 195 imagery on 2026-09-09. This CH HSS was observed in SOLAR-1 at L1 on 2026-09-07.

Version 1 submitted on 2026-09-11T18:53Z by Mary Aronne

No Notification has been sent for this activity yet.

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