Prohlížíte si archiv sobota 14. prosince 2019

Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2019 Dec 14 1230 UTC

SIDC Forecast

Sluneční erupce

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

Geomagnetism

Quiet (A<20 and K<4)

Sluneční protony

Quiet

	10cm flux	Ap
14 Dec 2019	069	006
15 Dec 2019	069	009
16 Dec 2019	069	006

Bulletin

Solar flaring activity continues to be very low and we expect such a low level of flaring activity in the coming hours. During last 24 hours there were no Earth directed CMEs and the solar protons remained at the background level. The solar wind speed is presently about 360 km/s and the interplanetary magnetic field magnitude is 4 nT. Elongated and patchy equatorial coronal hole of positive polarity has reached central meridian this morning. The solar wind originating from this coronal hole might arrive to Earth late on December 17. The geomagnetic conditions are presently quiet and we expect quiet to possibly unsettled geomagnetic conditions (due to expected arrival of the solar wind originating from the equatorial coronal hole of negative polarity that reached central meridian in the evening of December 10) in the coming hours.

Today's estimated international sunspot number (ISN): 000, based on 25 stations.

Solar indices for 13 Dec 2019

Wolf number Catania	000
10cm solar flux	069
AK Chambon La Forêt	005
AK Wingst	004
Estimated Ap	003
Estimated international sunspot number	000 - Based on 12 stations

Noticeable events summary

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

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