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High Speed Stream
Catalog: M2M_CATALOG
Event Time: 2023-11-24T18:50Z ( DSCOVR: PLASMAG )

All Detecting Spacecrafts:

DSCOVR: PLASMAG

ACE: SWEPAM

ACE: MAG

Activity ID: 2023-11-24T18:50:00-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: 2023-11-18
Note: Candidate CH is seen crossing the central meridian on the Earth-facing disk on 2023-11-23 and is centered around latitude N20. Characterized by increase in solar wind speed from approx. 350 km/s to approx. 460 km/s. Increase in B_total from 5 nT to 12 nT. Accompanied by an increase in temperature. Density increase prior to solar wind speed increase is unclear in the data. The maximum sustained solar wind speed for this CH HSS is difficult to determine because this is likely combined with a CME arrival around 2023-11-25T07:49Z.

Version 1 submitted on 2023-11-29T14:46Z by Mary Aronne

No Notification has been sent for this activity yet.

All directly linked activities:

2023-11-24T18:50:00-IPS-001
Location: Earth

2023-11-25T09:28:00-MPC-001

2023-11-25T18:00:00-GST-001
NOAA Kp: 6.0 (2023-11-25T21:00Z)

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