Het archief bekijken van woensdag 9 mei 2018

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2018 May 09 1230 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Active conditions expected (A>=20 or K=4)

Proton Flux monitor

Quiet

	10cm flux	Ap
09 May 2018	070	011
10 May 2018	070	010
11 May 2018	069	005

Bulletin

Solar activity was at very low levels. Active region NOAA 2708 regained some sunspot area, while NOAA 2709 (Catania 81) was stable. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels.

Solar activity is expected to remain at very low levels.

Earth remained under the influence of the high speed stream (HSS) from an elongated negative polarity equatorial coronal hole (CH). Solar wind speed varied mostly between 620 and 700 km/s, and was at values near 620 km/s by the end of the period (DSCOVR). Bz varied between -6 and +5 nT. The interplanetary magnetic field was mostly directed towards the Sun. Geomagnetic activity ranged from quiet to active levels.

Quiet to unsettled geomagnetic conditions are expected, with a chance on an isolated active interval.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 023, gebaseerd op 22 stations.

Zon indexen voor 08 May 2018

Wolfgetal Catania	022
10cm zonneflux	070
AK Chambon La Forêt	027
AK Wingst	017
Geschatte Ap	018
Geschat internationaal zonnevlekkengetal	020 - Gebaseerd op 32 stations

Overzicht opvallende gebeurtenissen

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

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