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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2013 Sep 03 1232 UTC

SIDC Forecast

Brillamenti solari

Eruptive (C-class flares expected, probability >=50%)

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

	10cm flux	Ap
03 Sep 2013	104	006
04 Sep 2013	104	019
05 Sep 2013	104	008

Bulletin

Solar activity has been quiet during the past 24 hours, featuring no C flares. There is a chance for C flares within the next 48 hours. The solar wind speed decreased from 420 to 380 km/s in the past 24 hours. In the same period, the Interplanetary Magnetic Field rose from 5 to 9 nT. The geomagnetic activity was at quiet levels (K Dourbes between 0 and 2; NOAA Kp between 1 and 3) during the past 24 hours. Quiet conditions (K Dourbes < 4) are expected for September 3 and 4, with a chance for active periods from the second half of September 4 onwards, due to the effects of a Coronal Hole high speed stream.

Today's estimated international sunspot number (ISN): 051, based on 14 stations.

Solar indices for 02 Sep 2013

Wolf number Catania	///
10cm solar flux	106
AK Chambon La Forêt	012
AK Wingst	008
Estimated Ap	010
Estimated international sunspot number	058 - Based on 18 stations

Noticeable events summary

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

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