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High Speed Stream
Catalog: M2M_CATALOG
Event Time: 2026-05-08T04:48Z ( ACE: MAG )

All Detecting Spacecrafts:

ACE: MAG

ACE: SWEPAM

DSCOVR: PLASMAG

Activity ID: 2026-05-08T04:48:00-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: 2026-04-28
Note: Characterized by an initial slow increase in speed from ~400 km/s to ~450 km/s and temperature, with a sharper jump around 2026-05-08T07:51Z, elevating to a current maximum speed of around 600 km/s. The start of this speed increase was preceeded by a magnetic enhancement beginning at 2026-05-07T15:16Z, peaking at 2026-05-07T18:23Z with a B_total 20.11nT. The signature is still ongoing.

Version 1 submitted on 2026-05-08T13:14Z by Tony Iampietro

No Notification has been sent for this activity yet.

All directly linked activities:

2026-05-07T15:16:00-IPS-001
Location: Earth

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