Het archief bekijken van donderdag 19 december 2019

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2019 Dec 19 1233 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
19 Dec 2019	070	016
20 Dec 2019	070	017
21 Dec 2019	070	017

Bulletin

Solar X ray flux remained below B level throughout the period. There are no spotted regions on disk and X-ray flux is expected to remain at background levels.

No Earth-directed CME's were detected in coronagraph images.

Solar high energy proton fluxes were at background levels and are expected to remain so.

Solar wind showed the ongoing passage of a coronal hole high speed stream. Solar wind speed was between 500-550km/s. Total magnetic field has restored over the period to under 5nT with a variable Bz. The magnetic field phi angle was stable in the positive sector. Solar wind conditions are expected to remain enhanced over the next 48 hours but Solar wind speed is expected to start to decline within the next 24 hours.

Geomagnetic conditions have been unsettled to active (NOAA Kp 2-4 and local K Dourbes 1-4). Geomagnetic conditions are expected to be unsettled over the next 24-48 hours in the wake of the passing high speed stream, with initially an active period also still possible.

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

Zon indexen voor 18 Dec 2019

Wolfgetal Catania	///
10cm zonneflux	070
AK Chambon La Forêt	023
AK Wingst	017
Geschatte Ap	015
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 22 stations

Overzicht opvallende gebeurtenissen

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

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