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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2020 Mar 19 1231 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
19 Mar 2020	072	015
20 Mar 2020	072	010
21 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 increased from about 400 to 500 km/s in the past 24 hours. The Interplanetary Magnetic Field (IMF) was predominantly oriented towards the Sun, and its magnitude varied between about 2 and 8 nT. Bz was mostly below or near -5 nT between about 22:45 UT on March 18 and 2:30 UT on March 19. Quiet to slightly enhanced solar wind conditions are expected in the next 24 hours.

Quiet to active geomagnetic conditions (K Dourbes between 1 and 4; NOAA Kp between 2 and 4) were registered in the past 24 hours. Quiet to unsettled geomagnetic levels (K Dourbes < 4) are expected on March 19, 20 and 21, with a chance for active intervals (K Dourbes = 4).

Today's estimated international sunspot number (ISN): 000, based on 23 stations.

Solar indices for 18 Mar 2020

Wolf number Catania	///
10cm solar flux	072
AK Chambon La Forêt	024
AK Wingst	008
Estimated Ap	007
Estimated international sunspot number	000 - Based on 20 stations

Noticeable events summary

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

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