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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2013 Feb 10 1203 UTC

SIDC Forecast

Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

	10cm flux	Ap
10 Feb 2013	108	003
11 Feb 2013	108	012
12 Feb 2013	109	011

Bulletin

The background X-ray flax has a low B-level. There were no C-class flares during last 24 hours. C-class flares are still possible, in particular from the Catania sunspot group 80 (NOAA AR 1670) which has the beta-gama configuration of its photospehric magnetic field. Earth is currently inside a slow solar wind with a speed of about 350 km/s. The interplanetary magnetic field magnitude is stable with value of about 5 nT. The partial halo CME from February 9 might arrive at the Earth on February 12 producing unsettled geomagnetic conditions. We expect geomagnetic conditions in the next 48 hours.

Today's estimated international sunspot number (ISN): 029, based on 12 stations.

Solar indices for 9 Feb 2013

Wolf number Catania	///
10cm solar flux	108
AK Chambon La Forêt	008
AK Wingst	003
Estimated Ap	003
Estimated international sunspot number	039 - Based on 11 stations

Noticeable events summary

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

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