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Interplanetary Shock (or CME Arrival)
Catalog: M2M_CATALOG
Location: Earth
Event Time: 2025-08-08T23:46Z ( ACE: MAG )

All Detecting Spacecrafts:

ACE: MAG

ACE: SWEPAM

Activity ID: 2025-08-08T23:46:00-IPS-001 (version 2)
Quality of ICME Signature: 1 (lacks some signatures)
Note: Likely the glancing blow arrival of CME: 2025-08-05T16:48Z, characterized by a rotation in magnetic field components, including Bz reaching approximately -14.8nT. Characterized by a decrease in temperature and no clear change in density during the CME's passage. Solar wind speeds decreased from approximately 560 km/s to approximately 480 km/s, and remained around 480 km/s until 2025-08-09T15:25Z. This CME arrival was combined with the arrival of a coronal hole high speed stream, with CIR starting at 2025-08-08T06:30Z, and coronal hole high speed stream onset starting at 2025-08-08T12:02Z.

Version 1 submitted on 2025-08-11T18:49Z by Mary Aronne
Version 2 submitted on 2025-08-11T18:50Z by Mary Aronne

No Notification has been sent for this activity yet.

All directly linked activities:

2025-08-05T16:48:00-CME-001

2025-08-09T15:00:00-GST-001
NOAA Kp: 6.0 (2025-08-09T18:00Z)

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