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Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2018 May 01 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
01 May 2018	070	006
02 May 2018	070	007
03 May 2018	070	007

Bulletin

Solar activity was very low with just two minor B flares originating from the plage region which is turning around the West limb. There are no spotted regions on disk and X ray flux is expected to remain at background levels.

No Earth directed CMEs have been detected in coronagraph data.

The solar proton flux levels are at background values and are expected to remain so.

Solar wind speed was near a maximum of 470-480km/s at the start of the period and then slowly declining to around 410-420 km/s currently. Total magnetic field reached a maximum of close to 8nT and afterwards also gradually declined to current values of 5nT. Bz was mostly positive and never below -2.5nT. Solar wind conditions should be near nominal throughout the next days.

Geomagnetic conditions were quiet to unsettled and are expected to be mainly quiet over the next days.

Today's estimated international sunspot number (ISN): 000, based on 24 stations.

Solar indices for 30 Apr 2018

Wolf number Catania	///
10cm solar flux	070
AK Chambon La Forêt	008
AK Wingst	007
Estimated Ap	007
Estimated international sunspot number	/// - Based on /// stations

Noticeable events summary

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

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