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Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2016 Oct 21 1230 UTC

SIDC Forecast

Sluneční erupce

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

Geomagnetism

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

Sluneční protony

Quiet

	10cm flux	Ap
21 Oct 2016	076	009
22 Oct 2016	077	010
23 Oct 2016	078	015

Bulletin

Over the past 24 hours solar activity has been low. there were no significant flares and all Active Regions (AR) have shown low levels of activity. No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar protons have 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 has fluctuated between 370 and 410 km/s over the past 24 hours. The total magnetic field strength has remained around 4 nT. The Bz component fluctuated around 1 nT, ranging between -2 and +4 nT. Geomagnetic conditions ranged between Kp index 0-2 (NOAA) and local K index 0-3 (Dourbes) over the past 24 hours. Geomagnetic conditions are expected to be quiet to unsettled over the next 24 hours. A small coronal hole located at central latitudes has rotated into the Western hemisphere and the resultant High Speed Stream (HSS) may enhance solar wind speeds in the coming days.

Today's estimated international sunspot number (ISN): 028, based on 14 stations.

Solar indices for 20 Oct 2016

Wolf number Catania	///
10cm solar flux	075
AK Chambon La Forêt	005
AK Wingst	003
Estimated Ap	002
Estimated international sunspot number	017 - Based on 23 stations

Noticeable events summary

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

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