Het archief bekijken van donderdag 12 oktober 2017

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2017 Oct 12 1237 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Moderate (ISES: Major) magstorm expected (A>=50 or K=6)

Proton Flux monitor

Quiet

	10cm flux	Ap
12 Oct 2017	070	034
13 Oct 2017	069	030
14 Oct 2017	070	024

Bulletin

Solar activity was at very low levels. There is no sunspots on the visible side of solar disk. Narrow and slow coronal mass ejections (CMEs) observed in coronagraphic imagery are not geoeffective. Integral proton flux for protons with energies above 10 MeV decreased from around 0.8 pfu till nominal 0.3 pfu over the past 24 hours. Quiet flaring conditions are expected to continue. The earth environment is currently under the influence of a positive polar coronal hole. Solar wind speed increased from 430 to 580 km/s (DSCOVR) over the past 24 hours and is expected to grow more. Total interplanetary magnetic filed is below 11 nT, while Bz component was varying between -10 and 9 nT over the past 24 hours, being mainly negative. The geomagnetic field is ranged from active to minor storm levels during the past 24 hours (Planetary NOAA Kp: 4-5; local K index at Dourbes: 2-5). Active to moderate geomagnetic conditions are expected to continue for next three days.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 24 stations.

Zon indexen voor 11 Oct 2017

Wolfgetal Catania	000
10cm zonneflux	070
AK Chambon La Forêt	048
AK Wingst	031
Geschatte Ap	034
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 23 stations

Overzicht opvallende gebeurtenissen

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

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