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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2016 Mar 20 1230 UTC

SIDC Forecast

Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

	10cm flux	Ap
20 Mar 2016	085	007
21 Mar 2016	080	005
22 Mar 2016	080	008

Bulletin

Two C-class flares erupted from NOAA 2521, which is located at the West limb. The C1.2 and C3.7 flares occurred shortly after each, peaking at 00:40 and 01:22 UT respectively. A filament eruption was observed in GONG images near S30E05 around 22 UT. C-class flares are possible (chance of 40%). No Earth-directed CMEs were observed.

Solar wind conditions are nominal with solar wind speed gradually declining from 480 to 400 km/s. Magnetic field magnitude was around 5 nT with a fluctuating Bz component. Geomagnetic conditions were mainly at quiet to unsettled levels, which is mainly expected to continue for the next 24 hours.

Today's estimated international sunspot number (ISN): 031, based on 13 stations.

Solar indices for 19 Mar 2016

Wolf number Catania	///
10cm solar flux	089
AK Chambon La Forêt	///
AK Wingst	014
Estimated Ap	016
Estimated international sunspot number	037 - Based on 09 stations

Noticeable events summary

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

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