Het archief bekijken van zondag 22 juli 2018

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2018 Jul 22 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
22 Jul 2018	069	007
23 Jul 2018	069	007
24 Jul 2018	068	017

Bulletin

Solar activity remains to be low despite the appearance of the new active region NOAA AR 2716, which emerged during last 24 hours and is presently situated close to the center of the solar disc. We expect such a low flaring activity (without C-class flares), to persist in the coming hours. Coronagraph images do not show signatures of the Earth directed CMEs, and the solar protons are at the background level.

Solar wind speed presently amounts about 500 km/s. The maximum solar wind speed (about 580 km/s), during last 24 hours was reached at about 16:00 UT on July 21. The interplanetary magnetic filed magnitude is presently about 4 nT. The fast solar wind, associated with extended equatorial coronal hole which reached central meridian in the early morning of July 21, is expected at the Earth in the mid of the day on July 24. The arrival of the fast flow might induce active geomagnetic conditions late on July 24. The geomagnetic conditions are presently quiet to unsettled and we expect such a geomagnetic conditions to persist in the coming hours.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 21 stations.

Zon indexen voor 21 Jul 2018

Wolfgetal Catania	///
10cm zonneflux	070
AK Chambon La Forêt	016
AK Wingst	014
Geschatte Ap	015
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 17 stations

Overzicht opvallende gebeurtenissen

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

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