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Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2019 Dec 09 1230 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
09 Dec 2019	071	010
10 Dec 2019	070	008
11 Dec 2019	070	006

Bulletin

The visible side of the solar disc is presently spotless and accordingly there were no C-class, or even B-class flares for several days. We expect such a low flaring activity to persist in the coming hours. During last 24 hours there were no Earth directed CMEs and the solar protons remained at the background level.

Presently the solar wind speed is about 350 km/s and the interplanetary magnetic field magnitude is 3 nT. The geomagnetic conditions are quiet with one interval of unsettled conditions reported early this morning (both Dourbes and NOAA reported K and Kp values 3). We are expecting quiet geomagnetic conditions with possibly isolated intervals of unsettled conditions due to arrival of the solar wind originating from the patchy negative polarity coronal hole that reached central meridian on December 05.

Today's estimated international sunspot number (ISN): 000, based on 13 stations.

Solar indices for 08 Dec 2019

Wolf number Catania	///
10cm solar flux	072
AK Chambon La Forêt	010
AK Wingst	003
Estimated Ap	002
Estimated international sunspot number	000 - Based on 22 stations

Noticeable events summary

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

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