Het archief bekijken van woensdag 21 maart 2018

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2018 Mar 21 1230 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
21 Mar 2018	068	003
22 Mar 2018	068	011
23 Mar 2018	067	010

Bulletin

Solar activity was at very low levels. The Sun is spotless. 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 has left the coronal hole (CH) wind stream. Current solar wind parameters are at nominal levels. Solar wind speed decreased from 450 km/s to 330 km/s, and Bz varied mostly between -3 and +3 nT (DSCOVR). The interplanetary magnetic field was directed mostly away from the Sun before midnight, and mostly towards the Sun after midnight. Geomagnetic activity was at quiet levels.

Over the next few days, quiet to unsettled geomagnetic conditions are expected with a chance on an active episode from wind streams associated with the patchy equatorial CHs. The chance on an isolated minor storming interval is likely to increase by 24-25 March with the expected arrival of the wind stream related to the more prominent trailing extension of the southern polar CH.

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

Zon indexen voor 20 Mar 2018

Wolfgetal Catania	000
10cm zonneflux	069
AK Chambon La Forêt	010
AK Wingst	008
Geschatte Ap	008
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 31 stations

Overzicht opvallende gebeurtenissen

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

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