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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2013 Feb 18 1115 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
18 Feb 2013	108	004
19 Feb 2013	111	004
20 Feb 2013	115	004

Bulletin

There are currently 5 active regions on the solar disk where NOAA 11675 is the most active, featuring one M1.9 flare on February 17th with peak time at 15:50 UT. The solar activity is expected to remain quiet, but a C or even M flare is still possible from AR NOAA 11675. Moderate to active K levels where measured at Dourbes from February 17th 12:00 UT until February 17th 00:00 UT. Quiet conditions are expected for the next 48h.

Today's estimated international sunspot number (ISN): 069, based on 09 stations.

Solar indices for 17 Feb 2013

Wolf number Catania	///
10cm solar flux	106
AK Chambon La Forêt	014
AK Wingst	010
Estimated Ap	009
Estimated international sunspot number	053 - Based on 17 stations

Noticeable events summary

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

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