Het archief bekijken van zaterdag 23 december 2017

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2017 Dec 23 1321 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
23 Dec 2017	077	008
24 Dec 2017	077	014
25 Dec 2017	077	007

Bulletin

Solar activity was low, no C-class flares in past 24 h. There is only one region visible on disk (Catania group 67, NOAA active region 2692) with beta magnetic field configuration. C-class flaring is possible.

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

Solar wind speed is at 380 km/s with interplanetary magnetic field magnitude of 7 nT. A sector boundary crossing was seen around 22:00 UT on 22 December, with polarity changing from positive to negative. The arrival of a high speed stream from a negative coronal hole is expected within 24 h. Geomagnetic conditions have been quiet, active periods and possibly minor storms are possible under the influence of the high speed stream.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 027, gebaseerd op 08 stations.

Zon indexen voor 22 Dec 2017

Wolfgetal Catania	027
10cm zonneflux	075
AK Chambon La Forêt	007
AK Wingst	001
Geschatte Ap	002
Geschat internationaal zonnevlekkengetal	024 - Gebaseerd op 11 stations

Overzicht opvallende gebeurtenissen

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

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