Het archief bekijken van donderdag 10 mei 2018

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2018 May 10 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
10 May 2018	069	015
11 May 2018	069	007
12 May 2018	069	003

Bulletin

Solar activity was at very low levels. Small and inactive region NOAA 2709 (Catania 81) is currently the only visible sunspot region on the solar disk. 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 560 and 610 km/s, with a short-lived peak near 670 km/s around 18UT (DSCOVR). Bz varied between -5 and +4 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: 011, gebaseerd op 20 stations.

Zon indexen voor 09 May 2018

Wolfgetal Catania	025
10cm zonneflux	070
AK Chambon La Forêt	025
AK Wingst	019
Geschatte Ap	020
Geschat internationaal zonnevlekkengetal	021 - Gebaseerd op 33 stations

Overzicht opvallende gebeurtenissen

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

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