💾 Archived View for radia.bortzmeyer.org › presto › 2023-09-25.gmi captured on 2023-11-14 at 07:52:53. Gemini links have been rewritten to link to archived content
⬅️ Previous capture (2023-09-28)
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Issued on 2023 Sep 25 0615 UTC
A shock in the solar wind at 19:54 UTC on 24 September marks the arrival of the ICME from 21 September (and probably that of the 22 September too). The speed jumped from 315 km/s to 440 km/s and the interplanetary magnetic field from 7 to 19 nT. The speed later reached 470 km/s and the magnetic field 28 nT with Bz down to -27 nT. This created moderate geomagnetic storms globally (Kp 6) and minor storms locally (K_Bel 5). The Earth is still inside the ICME (or ICMEs, to be confirmed as more data becomes available) and the corresponding geomagnetic storm is still ongoing.
Issued on 2023 Sep 25 1138 UTC
A partial halo CME with angular width around 150 degrees was first seen erupting towards the NW by LASCO-C2 at 09:48 UTC on 24 September. This CME is backsided and not expected to affect the Earth.