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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2018 Oct 03 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 03 Oct 2018 until 05 Oct 2018
Brillamenti solari

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Protoni solari

Quiet

10cm fluxAp
03 Oct 2018067010
04 Oct 2018066010
05 Oct 2018065007

Bulletin

One active region visible on the solar disc, NOAA 2723 with beta magnetic field configuration. No C-class flares in past 24 h. Solar activity is expected to remain at low levels.

No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar protons have remained at background levels over the past 24 hours.

The solar wind speed is at 410 km/s with interplanetary magnetic fields of 3 nT. Geomagnetic conditions have been quiet. The fast solar wind associated with a small negative polarity equatorial coronal hole is expected to arrive later today or tomorrow, causing up to active geomagnetic conditions.

Today's estimated international sunspot number (ISN): 012, based on 19 stations.

Solar indices for 02 Oct 2018

Wolf number Catania///
10cm solar flux067
AK Chambon La Forêt009
AK Wingst010
Estimated Ap009
Estimated international sunspot number015 - Based on 22 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

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Ultimo brillamento M2025/12/27M5.1
Ultima tempesta geomagnetica2025/12/22Kp5 (G1)
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Ultimo giorno senza macchie2022/06/08
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novembre 202591.8 -22.8
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