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Interplanetary Shock (or CME Arrival)
Catalog: M2M_CATALOG
Location: Earth
Event Time: 2026-03-20T20:17Z ( ACE: MAG )

All Detecting Spacecrafts:

ACE: MAG

ACE: SWEPAM

Activity ID: 2026-03-20T20:17:00-IPS-001 (version 2)
Quality of ICME Signature: 1 (lacks some signatures)
Note: Additional increase in B_total to >29 nT following the IPS at L1 as detected by ACE and DSCOVR at 2026-03-20T01:31Z. This arrival signature includes sudden increases to B_total, solar wind speeds, temperature, and density. The signature is on-going.

Version 1 submitted on 2026-03-20T21:13Z by Carina Alden
Version 2 submitted on 2026-03-20T21:26Z by Carina Alden

A Notification with ID 20260320-AL-004 was sent on 2026-03-20T21:25Z

All directly linked activities:

2026-03-18T09:23:00-CME-001

2026-03-20T18:00:00-GST-001
NOAA Kp: 5.67 (2026-03-20T21:00Z)
NOAA Kp: 6.67 (2026-03-21T00:00Z)
NOAA Kp: 7.0 (2026-03-21T03:00Z)
NOAA Kp: 6.0 (2026-03-21T06:00Z)

2026-03-20T21:13:00-MPC-001

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