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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2020 Mar 20 1239 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 2020	072	008
21 Mar 2020	072	007
22 Mar 2020	072	007

Bulletin

The Sun is spotless and did not produce any flares in the past 24 hours. The chance for a C flare in the next 24 hours is estimated at only 1%.

No Earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.

Solar wind speed near Earth as registered by DSCOVR decreased from about 500 to 400 km/s in the past 24 hours. The Interplanetary Magnetic Field (IMF) was variably oriented towards and away from the Sun, and its magnitude varied between about 1 and 6 nT. Bz was never below -5 nT. Quiet to slightly enhanced solar wind conditions are expected in the next 24 hours.

Quiet to unsettled geomagnetic conditions (K Dourbes between 1 and 3; NOAA Kp between 0 and 3) were registered in the past 24 hours. Quiet to unsettled geomagnetic levels (K Dourbes < 4) are expected on March 20, 21 and 22, with a chance for active intervals (K Dourbes = 4).

Today's estimated international sunspot number (ISN): 000, based on 12 stations.

Solar indices for 19 Mar 2020

Wolf number Catania	///
10cm solar flux	072
AK Chambon La Forêt	013
AK Wingst	013
Estimated Ap	014
Estimated international sunspot number	000 - Based on 28 stations

Noticeable events summary

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

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