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Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2020 Apr 24 1230 UTC

SIDC Forecast

Sluneční erupce

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

Geomagnetism

Quiet (A<20 and K<4)

Sluneční protony

Quiet

	10cm flux	Ap
24 Apr 2020	070	005
25 Apr 2020	070	010
26 Apr 2020	070	008

Bulletin

Solar X-ray flux remained below B level. There are no spotted regions on disk and Solar flaring is expected to remain below C level over the next days.

There were no Earth directed Coronal Mass Ejections (CMEs) observed in the available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels over the past 24 hours and is expected to stay at nominal levels. The greater than 2 MeV electron flux has been slightly enhanced over the past 24 hours. The electron flux should be at background values over the next days as Solar wind has returned to a nominal slow Solar wind regime.

Solar wind returned to a nominal slow Solar wind regime. Solar wind speed dropped steadily from around 420 km/s to around 370 km/s currently. Total magnetic field was at or around 5nT wit a variable Bz component. The magnetic field phi angle was stable in the towards sector. Solar wind conditions are expected to remain nominal.

Geomagnetic conditions were quiet to unsettled (NOAA Kp and local K Dourbes 0-3). Quiet geomagnetic conditions are expected over the next days, with possibly some isolated unsettled episodes.

Today's estimated international sunspot number (ISN): 000, based on 26 stations.

Solar indices for 23 Apr 2020

Wolf number Catania	///
10cm solar flux	069
AK Chambon La Forêt	008
AK Wingst	004
Estimated Ap	003
Estimated international sunspot number	000 - Based on 34 stations

Noticeable events summary

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

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