Prohlížíte si archiv sobota 15. února 2020

Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2020 Feb 15 1231 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
15 Feb 2020	071	005
16 Feb 2020	071	007
17 Feb 2020	071	007

Bulletin

The solar activity has been quiet over the past 24 hours. The visible solar disc is spotless and the X-ray flux is below B-level. The solar activity is expected to remain at low levels over the next 24 hours.

No earth-directed coronal mass ejections (CMEs) have been observed in the available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal values.

The solar wind parameters were at nominal levels: the wind speed range was 307-360 km/s, the total interplanetary magnetic fields were below 5.5 nT, and the southward magnetic component fluctuated between -4.5 nT and 2.5 nT. The solar wind conditions are expected to remain at background levels for the next 24-hour period. The high-speed streams from the equatorial coronal hole (negative polarity) that reached the meridian on February 13 may slightly enhance the solar wind parameters in about 2 days.

The geomagnetic conditions were quiet and are expected to remain so.

Today's estimated international sunspot number (ISN): 000, based on 18 stations.

Solar indices for 14 Feb 2020

Wolf number Catania	///
10cm solar flux	071
AK Chambon La Forêt	003
AK Wingst	///
Estimated Ap	002
Estimated international sunspot number	000 - Based on 20 stations

Noticeable events summary

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

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