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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2018 Oct 26 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 26 Oct 2018 until 28 Oct 2018
Brillamenti solari

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

10cm fluxAp
26 Oct 2018069006
27 Oct 2018068004
28 Oct 2018067004

Bulletin

Over the past 24 hours solar activity has been low. No significant flares have been recorded. There are currently no significant Active Regions on the solar disk. No Earth directed Coronal Mass Ejections (CMEs) have been detected. The greater than 10MeV proton flux remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with a low probability of C-class flares. The solar wind speed fluctuated between 325 to 390 km/s over the past 24 hours. The total magnetic field strength has fluctuated around 5 nT. The Bz component fluctuated around 0 nT, ranging between -6 and +7 nT. Geomagnetic conditions ranged between Kp index 1-2 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. Geomagnetic conditions are expected to be quiet.

Today's estimated international sunspot number (ISN): 000, based on 10 stations.

Solar indices for 25 Oct 2018

Wolf number Catania000
10cm solar flux069
AK Chambon La Forêt014
AK Wingst009
Estimated Ap008
Estimated international sunspot number000 - Based on 21 stations

Noticeable events summary

DayBeginMaxFineLocStrengthOP10cmCatania/NOAARadio burst types
Nessuna

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

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Notizie sul meteo spaziale

Ultimo brillamento X2026/01/18X1.9
Ultimo brillamento M2026/01/21M3.4
Ultima tempesta geomagnetica2026/01/22Kp5+ (G1)
Giorni senza macchie
Ultimo giorno senza macchie2022/06/08
Media mensile Numero di Macchie Solari
dicembre 2025124 +32.2
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Questo giorno nella storia*

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