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Interplanetary Shock (or CME Arrival)
Catalog: M2M_CATALOG
Location: Earth
Event Time: 2026-08-28T08:30Z ( SOLAR-1: MAG )

All Detecting Spacecrafts:

SOLAR-1: MAG

ACE: SWEPAM

ACE: MAG

SOLAR-1: SWiPS

IMAP: MAG

IMAP: SWAPI

Activity ID: 2026-08-28T08:30:00-IPS-001 (version 1)
Quality of ICME Signature: 1 (lacks some signatures)
Note: An enhancement in magnetic field components with B_total increasing from 2nT to 13nT (peaking at 2026-08-28T16:11Z) is observed. The arrival is also characterized by an increase in solar wind speed from approximately 250 km/s to 290 km/s from 2026-08-28T03:00Z to 13:35Z. An additional increase in solar wind speed up to 380 km/s and an increase in temperature is observed at 2026-08-28T13:35Z.This arrival signature is ongoing and may be the arrival of CME: 2026-08-25T10:38Z, CME: 2026-08-25T12:53Z, and/or CME: 2026-08-25T14:53Z. A coronal hole high speed stream arrival may also be combined with this arrival signature.

Version 1 submitted on 2026-08-28T17:26Z by Mary Aronne

No Notification has been sent for this activity yet.

All directly linked activities:

2026-08-25T10:38:00-CME-001

2026-08-25T12:53:00-CME-001

2026-08-25T14:53:00-CME-001

2026-08-28T14:28:00-HSS-001

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