Het archief bekijken van zondag 21 oktober 2018

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2018 Oct 21 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
21 Oct 2018	070	013
22 Oct 2018	069	001
23 Oct 2018	068	001

Bulletin

There are no active regions visible on the solar disk. No C-class flares in past 24 h. Solar activity is expected to remain at low levels.

No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar protons have remained at background levels over the past 24 hours.

The solar wind speed is at 330 km/s with interplanetary magnetic fields of 8 nT. Geomagnetic conditions have been quiet. A sector boundary crossing occurred around 07:00 UT, the interplanetary magnetic field polarity changed from negative to positive. The solar wind speed started increasing since then, marking the late arrival of the high speed solar wind stream associated with the low latitudinal extension of the northern polar coronal hole coming to Earth. The effect is expected to be weak, producing up to active periods. A patchy negative polarity coronal hole traversed central meridian yesterday, its associated high speed stream will affect the Earth around October 24.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 17 stations.

Zon indexen voor 20 Oct 2018

Wolfgetal Catania	///
10cm zonneflux	070
AK Chambon La Forêt	005
AK Wingst	002
Geschatte Ap	001
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 28 stations

Overzicht opvallende gebeurtenissen

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

Alle tijden in UTC

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