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Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2020 Dec 18 1231 UTC

SIDC Předpověď

Sluneční erupce

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

Geomagnetismus

Quiet (A<20 and K<4)

Sluneční protony

Quiet

	10cm tok	Ap
18 Dec 2020	082	002
19 Dec 2020	082	003
20 Dec 2020	082	003

Bulletin

The Sun has not produced any B flare or higher in the past 24 hours. The chance for a C flare in the next 24 hours is estimated at only 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. The greater than 2 MeV electron flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours. The greater than 2 MeV electron fluence was at nominal levels during the past 24 hours, and is expected to remain so in the next 24 hours.

Solar wind speed near Earth as registered by DSCOVR varied between about 265 and 300 km/s in the past 24 hours. The orientation of the Interplanetary Magnetic Field (IMF) was predominantly positive (away from the Sun) and its magnitude varied between about 1 and 8 nT. Bz was never below -5 nT. Nominal solar wind conditions are expected in the next days.

Quiet geomagnetic conditions (K Dourbes between 0 and 1; NOAA Kp between 0 and 1) were registered in the past 24 hours. Quiet to unsettled geomagnetic levels (K Dourbes < 4) are expected on December 18, 19 and 20.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 004, na základě 12 stanic.

Solární indexy za 17 Dec 2020

Wolfovo číslo Catania	012
10cm sluneční tok	082
AK Chambon La Forêt	003
AK Wingst	001
Odhadovaný Ap	001
Odhadovaný mezinárodní počet slunečních skvrn	011 - Na základě 19 stanic

Souhrn významných událostí

Poskytuje Centrum pro analýzu dat o solárních vlivech© - SIDC - Zpracováno SpaceWeatherLive

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