Viewing archive of Saturday, 21 March 2020

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2020 Mar 21 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
21 Mar 2020	072	008
22 Mar 2020	072	007
23 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 520 km/s in the past 24 hours. The Interplanetary Magnetic Field (IMF) was oriented predominantly towards the Sun, and its magnitude varied between about 2 and 7 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 1 and 3) were registered in the past 24 hours. Quiet to unsettled geomagnetic levels (K Dourbes < 4) are expected on March 21, 22 and 23, with a chance for active intervals (K Dourbes = 4).

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

Solar indices for 20 Mar 2020

Wolf number Catania	///
10cm solar flux	072
AK Chambon La Forêt	016
AK Wingst	011
Estimated Ap	010
Estimated international sunspot number	000 - Based on 18 stations

Noticeable events summary

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

All times in UTC

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