Viewing archive of Wednesday, 18 March 2020

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2020 Mar 18 1231 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
18 Mar 2020	072	005
19 Mar 2020	072	007
20 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 varied between about 365 and 430 km/s in the past 24 hours. The Interplanetary Magnetic Field (IMF) was predominantly oriented towards the Sun, and its magnitude varied between about 0 and 7 nT. Bz was never below -5 nT. Quiet to slightly enhanced solar wind conditions are expected in the next 24 hours.

Quiet geomagnetic conditions (K Dourbes between 0 and 2; NOAA Kp between 1 and 2) were registered in the past 24 hours. Quiet to unsettled geomagnetic levels (K Dourbes < 4) are expected on March 18, 19 and 20, with a slight chance for active intervals (K Dourbes = 4).

Today's estimated international sunspot number (ISN): 000, based on 14 stations.

Solar indices for 17 Mar 2020

Wolf number Catania	///
10cm solar flux	072
AK Chambon La Forêt	009
AK Wingst	007
Estimated Ap	005
Estimated international sunspot number	000 - Based on 35 stations

Noticeable events summary

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

All times in UTC

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