DONKI Header

CCMC DONKI

DONKI: Menu Page

Go to:

 DONKI: View SW Activity
Interplanetary Shock (or CME Arrival)
Catalog: M2M_CATALOG
Location: Earth
Event Time: 2026-06-05T04:23Z ( ACE: MAG )
All Detecting Spacecrafts:
ACE: MAG
ACE: SWEPAM
Activity ID: 2026-06-05T04:23:00-IPS-001 (version 2)
Quality of ICME Signature: 2 (clear signatures)
Note: Characterized by an initial B_total spike from 7.8nT to 15.97nT, reaching a peak B_total of 18.8nT at 2026-06-05T05:24Z. B_z was largely northward early in this signature, turning southward after 2026-06-05T10:07Z with a peak at -13.4nT at 2026-06-05T11:36Z. An initial increase in solar wind speed from ~400 km/s to ~550 km/s at the shock, decreasing down to ~450 km/s, and rising back up to ~570 km/s starting ~2026-06-05T10:00Z. An increase in density and temperature is observed with the initial shock, variable density but largely decreasing after. Temperature data rises quickly after ~2026-06-05T10:00Z in line with the second speed increase. Starting at 2026-06-05T12:06Z, the magnetic field components and solar wind speed reconfigure and are likely indicative of a second CME arrival within the overall arrival signature, separated into its own subsequent DONKI entry. This first part of the arrival signature is associated with the arrival of CME: 2026-06-03T01:53Z, and the second piece beginning at 2026-06-05T12:06Z is associated with the arrival of CME: 2026-06-03T11:48Z. 
Version 1 submitted on 2026-06-05T11:19Z by Tony Iampietro
Version 2 submitted on 2026-06-10T23:03Z by Tony Iampietro
A Notification with ID 20260605-AL-001 was sent on 2026-06-05T11:36Z

All directly linked activities:
2026-06-03T01:53:00-CME-001
2026-06-05T15:00:00-GST-001
NOAA Kp: 6.33 (2026-06-05T18:00Z)


Comments by users:
0 comment received.
Insert title here

The Moon to Mars Space Weather Analysis Office and other entities provide data to DONKI as a courtesy to the community.
By visiting this site, you acknowledge that you understand and agree to the Important Disclaimer Notice

If you are looking for the official U.S. Government forecast for space weather, please go to NOAA's Space Weather Prediction Center (https://swpc.noaa.gov). This "Experimental Research Information" consists of preliminary NASA research products and should be interpreted and used accordingly.

Curator: Chiu Wiegand | NASA Official: Dr. Masha Kuznetsova | Privacy and Security Notices | Accessibility | CCMC Data Policy