Het archief bekijken van zondag 16 december 2018

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2018 Dec 16 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
16 Dec 2018	071	012
17 Dec 2018	070	014
18 Dec 2018	070	001

Bulletin

NOAA 2731 produced a B1.0 flare in the past 24 hours, and has decayed to an alpha region. The chance for a C flare in the next 24 hours is estimated at 5%.

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 DSCOVR varied between about 300 and 350 km/s in the past 24 hours. The Interplanetary Magnetic Field (IMF) was predominantly directed towards the Sun and its magnitude varied between about 0 and 4 nT. Bz was never below -5 nT. A weak solar wind stream associated with a negative polarity, equatorial-South polar coronal hole may arrive near Earth on December 16.

Quiet geomagnetic conditions (K Dourbes between 0 and 1; NOAA Kp between 0 and 1) were registered in the past 24 hours. There is a chance for active intervals (K Dourbes = 4) on December 16 and 17, related to the possible arrival of a weak solar wind stream associated with a negative polarity, equatorial-South polar coronal hole. Quiet to unsettled geomagnetic levels (K Dourbes < 4) are expected on December 18.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 08 stations.

Zon indexen voor 15 Dec 2018

Wolfgetal Catania	///
10cm zonneflux	071
AK Chambon La Forêt	005
AK Wingst	001
Geschatte Ap	001
Geschat internationaal zonnevlekkengetal	007 - Gebaseerd op 18 stations

Overzicht opvallende gebeurtenissen

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

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