Viewing archive of Wednesday, 11 September 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 Sep 11 1233 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Solar protons

Quiet

	10cm flux	Ap
11 Sep 2013	095	007
12 Sep 2013	095	011
13 Sep 2013	095	007

Bulletin

Solar activity is very low, no changes are foreseen for the next 48h. Geomagnetic conditions have been quiet to unsettled (due to a sector boundary crossing on September 10). The fast solar wind from a coronal hole may arrive to the Earth in the coming 48h, causing active geomagnetic conditions with possible minor storm levels.

Today's estimated international sunspot number (ISN): 042, based on 10 stations.

Solar indices for 10 Sep 2013

Wolf number Catania	///
10cm solar flux	095
AK Chambon La Forêt	018
AK Wingst	009
Estimated Ap	010
Estimated international sunspot number	015 - Based on 22 stations

Noticeable events summary

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

All times in UTC

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