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Interplanetary Shock (or CME Arrival)
Catalog: M2M_CATALOG Location: Earth Event Time: 2026-02-20T22:35Z ( ACE: MAG ) Quality of ICME Signature: 1 (lacks some signatures) Note: An enhancement in magnetic field parameters was observed around 2026-02-20T22:35Z with an increase from 7nT to 15nT, an increase in solar wind speed was observed from approximately 460 km/s 520 km/s, and this was accompanied by an increase in temperature and density. This may be the glancing blow arrival of CME: 2026-02-16T14:08Z. This weak CME arrival signature is preceded by an increase in B_total from 6nT to 10nT starting at 2026-02-20T10:55Z. From 2026-02-20T08:15Z to 2026-02-20T09:40Z an increase in solar wind speed from approximately 480 km/s to approximately 520 km/s is observed. This CME arrival is closely followed by an interplanetary shock seen at 2026-02-21T14:26Z associated with a coronal hole high speed stream. Version 1 submitted on 2026-02-20T12:29Z by Mary Aronne Version 2 submitted on 2026-02-24T17:10Z by Mary Aronne Version 3 submitted on 2026-02-24T20:02Z by Mary AronneNo Notification has been sent for this activity yet. |
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