Перегляд архіву четвер, 12 березня 2020

Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2020 Mar 12 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
12 Mar 2020	070	011
13 Mar 2020	070	011
14 Mar 2020	069	008

Bulletin

Solar flaring activity is low, without C-class or even B-class flares reported during last 24 hours. The only numbered sunspot group (Catania group 29, NOAA region 2758) observed on the visible side of the solar disc continues to decay. During last 24 hours there were no Earth directed CMEs observed and the solar protons remained at the background level. The solar wind speed is presently about 350 km/s and the interplanetary magnetic field magnitude is 6 nT. We might expect increase of the solar wind speed later today or tomorrow morning, due to the possible arrival of the solar wind from the negative polarity coronal hole that crossed central meridian in the evening of March 8. The geomagnetic conditions are presently quiet to unsettled and we expect them to stay so in the coming hours.

Today's estimated international sunspot number (ISN): 000, based on 21 stations.

Solar indices for 11 Mar 2020

Wolf number Catania	///
10cm solar flux	071
AK Chambon La Forêt	006
AK Wingst	004
Estimated Ap	003
Estimated international sunspot number	000 - Based on 24 stations

Noticeable events summary

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

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