Перегляд архіву четвер, 20 лютого 2020

Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2020 Feb 20 1231 UTC

SIDC Forecast

Сонячні спалахи

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

Geomagnetism

Quiet (A<20 and K<4)

Сонячні протони

Quiet

	10cm flux	Ap
20 Feb 2020	071	008
21 Feb 2020	071	007
22 Feb 2020	071	007

Bulletin

No active regions visible on the Sun. No flares observed, nor expected.

No Earth directed CMEs in the past 24 h. Solar protons have remained at background levels over the past 24 hours.

The solar wind speed is at 420 km/s with interplanetary magnetic field magnitude of 4 nT. Quiet to unsettled conditions (K and Kp = 1 - 3) were observed in the past 24 h. The solar wind from small patchy negative polarity equatorial coronal holes can still affect the Earth (including the low latitudinal extension of the southern polar coronal hole). Mostly quiet to unsettled conditions expected for the next 48 h.

Today's estimated international sunspot number (ISN): 000, based on 16 stations.

Solar indices for 19 Feb 2020

Wolf number Catania	000
10cm solar flux	071
AK Chambon La Forêt	017
AK Wingst	014
Estimated Ap	015
Estimated international sunspot number	000 - Based on 27 stations

Noticeable events summary

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

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