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Interplanetary Shock (or CME Arrival)
Catalog: M2M_CATALOG
Location: Earth
Event Time: 2025-12-03T05:01Z ( DSCOVR: PLASMAG )

All Detecting Spacecrafts:

DSCOVR: PLASMAG

ACE: SWEPAM

ACE: MAG

Activity ID: 2025-12-03T05:01:00-IPS-001 (version 1)
Quality of ICME Signature: -1 (unspecified)
Note: Characterized by an amplification of magnetic field components with Btotal increasing from 8nT at 2025-12-03T05:01Z to 15nT at 2025-12-03T12:48Z. An increase in density is observed alongside the amplification of magnetic field components, reaching 13 p/cc at 2025-12-03T10:07Z, while a decrease in temperature is observed at this time. As a result, this signature is likely associated with a corotating interaction region preceding a coronal hole high speed stream from a coronal hole centered near latitude N18 which reached the central meridian on 2025-11-30. This signature is still developing and analysis is ongoing.

Version 1 submitted on 2025-12-03T13:28Z by Mattie Anastopulos

A Notification with ID 20251203-AL-001 was sent on 2025-12-03T13:34Z

All directly linked activities:

2025-12-03T10:20:00-HSS-001

2025-12-03T18:00:00-GST-001
NOAA Kp: 6.33 (2025-12-03T21:00Z)

2025-12-03T22:15:00-MPC-001

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