Het archief bekijken van dinsdag 31 december 2019

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2019 Dec 31 1231 UTC

SIDC Prognose

Zonnevlammen

Quiet conditions (<50% probability of C-class flares)

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
31 Dec 2019	072	004
01 Jan 2020	072	014
02 Jan 2020	072	007

Bulletin

The Sun is spotless and did not produce any flares in the past 24 hours. The chance for a C flare in the next 24 hours is estimated at only 1%.

No Earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.

Solar wind speed near Earth as registered by ACE varied between about 275 and 325 km/s in the past 24 hours. The Interplanetary Magnetic Field (IMF) was directed towards the Sun, and its magnitude varied between about 2 and 8 nT. Bz was never below -5 nT. Quiet to mildly enhanced solar wind conditions are expected in the next 24 hours.

Quiet geomagnetic conditions (K Dourbes between 0 and 2; NOAA Kp between 0 and 2) were registered in the past 24 hours. Quiet to unsettled geomagnetic levels (K Dourbes < 4) are expected on December 31 and on January 1 and 2, with a chance for active intervals (K Dourbes = 4) due to the influence of a weak solar wind stream associated with a negative polarity coronal hole.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 12 stations.

Zon indexen voor 30 Dec 2019

Wolfgetal Catania	///
10cm zonneflux	071
AK Chambon La Forêt	///
AK Wingst	002
Geschatte Ap	002
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 28 stations

Overzicht opvallende gebeurtenissen

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

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