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High Speed Stream
Catalog: M2M_CATALOG
Event Time: 2025-02-26T12:36Z ( DSCOVR: PLASMAG )

All Detecting Spacecrafts:

DSCOVR: PLASMAG

ACE: SWEPAM

ACE: MAG

Activity ID: 2025-02-26T12:36:00-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: Sudden increase in solar wind speed from 400 km/s to 500 km/s, eventually reaching sustained speeds of 570 km/s. Simultaneous sudden increase in temperature, which remains elevated. Accompanied by a steady increase in density, which remains elevated. Source is a large coronal hole, spanning from N30 to S10, and about 20 degrees of longitude, seen crossing central meridian on 2025-02-25.

Version 1 submitted on 2025-02-27T13:02Z by Hannah Hermann

No Notification has been sent for this activity yet.

All directly linked activities:

2025-02-27T09:00:00-GST-001
NOAA Kp: 5.67 (2025-02-27T12:00Z)

2025-03-02T15:10:00-RBE-001

2025-03-07T17:35:00-RBE-001

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