Просмотр архива за пятница, 22 января 2021

Daily bulletin on solar and geomagnetic activity from the SIDC

Существующий: 2021 Jan 22 1231 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
22 Jan 2021	078	005
23 Jan 2021	077	006
24 Jan 2021	076	008

Bulletin

During last 24 hours number of B-class flares were reported, but there were no C-class flares or larger flares reported. We expect such a level of flaring activity to persist in the coming hours. An isolated C-class flares are possible but not very probable. The filament eruption in the south-west quadrant of the Sun was observed at about 10 UT today. The available coronagraph data do not show any possibly Earth directed CMEs. The proton flux levels remain at the background values.

The solar wind speed remains fluctuating between 300 and 350 km/s, and its present value is about 310 km/s. The interplanetary magnetic field magnitude is 3 nT. The geomagnetic conditions are presently quiet and we expect them to stay so in the coming hours.

Today's estimated international sunspot number (ISN): 031, based on 18 stations.

Solar indices for 21 Jan 2021

Wolf number Catania	///
10cm solar flux	078
AK Chambon La Forêt	005
AK Wingst	///
Estimated Ap	002
Estimated international sunspot number	024 - Based on 20 stations

Noticeable events summary

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

Все время в UTC

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