Het archief bekijken van zondag 31 mei 2020

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2020 May 31 1231 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
31 May 2020	070	010
01 Jun 2020	070	011
02 Jun 2020	069	007

Bulletin

During last 24 hours, solar flaring activity was low, without any flares reported. We expect a low level of flaring activity in the coming hours. Isolated B-class flares are possible, while C-class flares are possible but not probable. During last 24 hours there were no Earth directed CMEs and the solar protons remained at the background level.

The in situ observations show clear signatures of the solar wind originating from the negative polarity coronal hole. It is however, not possible to specify if the source was the extension of the southern polar coronal hole or the small equatorial coronal hole as they both have negative polarity. The solar wind speed is presently 400 km/s and the interplanetary magnetic field magnitude is about 4 nT. The arrival of solar wind originating from the coronal hole induced active geomagnetic conditions. The local station at Dourbes reported interval of K=4 from about 21:00 UT until the 24:00 UT on May 30, while NOAA reported only longer interval of Kp=3. We expect quiet to unsettled geomagnetic conditions in the coming hours.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 20 stations.

Zon indexen voor 30 May 2020

Wolfgetal Catania	///
10cm zonneflux	070
AK Chambon La Forêt	025
AK Wingst	020
Geschatte Ap	021
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 33 stations

Overzicht opvallende gebeurtenissen

Aangeboden door het Solar Influences Data Analysis Center© - SIDC - Verwerkt door SpaceWeatherLive

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