Просмотр архива за пятница, 14 февраля 2020

Daily bulletin on solar and geomagnetic activity from the SIDC

Существующий: 2020 Feb 14 1230 UTC

SIDC Forecast

Солнечные вспышки

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

Geomagnetism

Quiet (A<20 and K<4)

Солнечные протоны

Quiet

	10cm flux	Ap
14 Feb 2020	071	004
15 Feb 2020	071	007
16 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 320-360 km/s, the total interplanetary magnetic fields were below 5 nT, and the southward magnetic component fluctuated between -3.5 nT and 2.5 nT. The solar wind conditions are expected to remain at background levels for the next 24-hour period. A small equatorial patchy coronal hole (negative polarity) is now facing Earth. The high-speed streams from this coronal hole may slightly enhance the solar wind parameters in about 3 days.

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

Today's estimated international sunspot number (ISN): 000, based on 15 stations.

Solar indices for 13 Feb 2020

Wolf number Catania	000
10cm solar flux	071
AK Chambon La Forêt	006
AK Wingst	003
Estimated Ap	002
Estimated international sunspot number	000 - Based on 25 stations

Noticeable events summary

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

Все время в UTC

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