Viewing archive of Sunday, 11 August 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 Aug 11 1209 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
11 Aug 2013	103	007
12 Aug 2013	105	014
13 Aug 2013	106	011

Bulletin

There are currently 6 numbered AR on the solar disk. Solar activity was mostly quiet, but counted 2 low C-class flares both from AR NOAA 1818. Activity is expected to remain mostly quiet although an isolated C-class flare is possible. Geomagnetic conditions where quiet to active in the last 24 hours. In the evening of August 12th active conditions are expected due to the arrival of the CME of August 7th.

Today's estimated international sunspot number (ISN): 053, based on 17 stations.

Solar indices for 10 Aug 2013

Wolf number Catania	///
10cm solar flux	103
AK Chambon La Forêt	///
AK Wingst	008
Estimated Ap	007
Estimated international sunspot number	047 - Based on 17 stations

Noticeable events summary

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

All times in UTC

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