Space Weather Database Of Notifications, Knowledge, Information (DONKI)
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Interplanetary Shock (or CME Arrival)
Catalog: M2M_CATALOG Location: Earth Event Time: 2024-01-28T03:42Z ( DSCOVR: PLASMAG ) Quality of ICME Signature: -1 (unspecified) Note: Characterized by an amplification of magnetic field components with Btotal reaching 12nT at 2024-01-28T09:34Z. Closer to 10Z there is rotation of all three magnetic field components, however there is also some rapid fluctuation of magnetic field components throughout the length of this signature that could be indicative of a high speed stream. An increase in solar wind speed is observed from ~350 km/s to just under 490 km/s around 23Z, accompanied by small increases in density and temperature. It is possible that this unclear arrival is associated with CME: 2024-01-23T17:36Z and/or a brief/minor coronal hole high speed stream (possibly from a southern coronal hole which reached the central meridian on 2024-01-26). No separate database entry was made for this questionable high speed stream. Submitted on 2024-01-30T18:10Z by Anna Chulaki A Notification with ID 20240128-AL-001 was sent on 2024-01-28T14:55Z |
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