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High Speed Stream
Catalog: M2M_CATALOG
Event Time: 2025-11-06T05:28Z ( ACE: SWEPAM )

All Detecting Spacecrafts:

ACE: SWEPAM

ACE: MAG

Activity ID: 2025-11-06T05:28:00-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: 2025-10-29
Note: Characterized by an increase in solar win speeds from approx. 415km/s to approx. 650km/s, along with an initial increase in B_total from approx. 14nT to approx. 24nT, and an increase in temperature to approx. 500kK. This signature is likely associated with a coronal hole which crossed center disk on 2025-11-03. This coronal hole high speed stream signature is embedded within a likely glancing blow signature from CME: 2025-11-03T09:36Z, resulting in a decrease in temeratures (approx. 575kK to approx. 200kK) with the passage of the CME flux rope.

Version 1 submitted on 2025-11-06T18:22Z by Melissa Kane

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All directly linked activities:

2025-11-08T15:15:00-RBE-001

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