Viewing archive of Thursday, 12 September 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 Sep 12 1355 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
12 Sep 2013	094	013
13 Sep 2013	094	007
14 Sep 2013	094	007

Bulletin

Solar activity has been very low. There are now four numbered active regions on the Sun, but the chances of flaring are still minor. Geomagnetic conditions have been quiet. A fast solar wind from a coronal hole is expected in the next 24h, conditions may rise to active levels with isolated minor storm periods.

Today's estimated international sunspot number (ISN): 039, based on 11 stations.

Solar indices for 11 Sep 2013

Wolf number Catania	069
10cm solar flux	093
AK Chambon La Forêt	013
AK Wingst	006
Estimated Ap	006
Estimated international sunspot number	042 - Based on 15 stations

Noticeable events summary

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

All times in UTC

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