Het archief bekijken van zondag 31 december 2017

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2017 Dec 31 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
31 Dec 2017	070	010
01 Jan 2018	069	010
02 Jan 2018	068	007

Bulletin

Solar activity was low, no C-class flares in past 24 h. The situation is not expected to change, as there are no active regions on disk.

Proton flux levels are at background values and are expected to remain so. No Earth-directed CMEs were observed.

Solar wind speed is at 360 km/s with interplanetary magnetic field magnitude of 5 nT. Geomagnetic conditions have been quiet. There is a small positive coronal hole located at 30 degrees northern latitude which may affect the Earth within 24h (although its associated solar wind stream may pass north of the Earth), active conditions can be expected then (with isolated minor storm periods possible).

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 007, gebaseerd op 12 stations.

Zon indexen voor 30 Dec 2017

Wolfgetal Catania	///
10cm zonneflux	070
AK Chambon La Forêt	008
AK Wingst	005
Geschatte Ap	004
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 13 stations

Overzicht opvallende gebeurtenissen

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

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