Het archief bekijken van zondag 19 november 2017

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2017 Nov 19 1236 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
19 Nov 2017	075	010
20 Nov 2017	073	015
21 Nov 2017	071	009

Bulletin

Both sunspot groups, which were observed on the visible side of the solar disc during last 24 hours, are decaying. Solar flaring activity was low and will remain so in the coming hours with very low probability for C-class flares (about 5%). There were no Earth directed CMEs observed since last report, and the solar protons remained at background level.

The Earth is within the slow solar wind (speed of about 360 km/s) and the interplanetary magnetic field magnitude is very low presently amounting about 1 nT. The fast solar wind associated with the large equatorial coronal hole (reached central meridian in the early morning of November 16) is expected to arrive at the Earth later today. The geomagnetic conditions are presently quiet and we expect unsettled to active geomagnetic conditions starting from this evening, due to the expected arrival of the fast solar wind.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 19 stations.

Zon indexen voor 18 Nov 2017

Wolfgetal Catania	///
10cm zonneflux	076
AK Chambon La Forêt	013
AK Wingst	008
Geschatte Ap	008
Geschat internationaal zonnevlekkengetal	015 - Gebaseerd op 20 stations

Overzicht opvallende gebeurtenissen

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

Alle tijden in UTC

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