Prohlížíte si archiv pátek 26. dubna 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2013 Apr 26 1158 UTC

SIDC Forecast

Sluneční erupce

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

Geomagnetism

Quiet (A<20 and K<4)

Sluneční protony

Quiet

	10cm flux	Ap
26 Apr 2013	115	011
27 Apr 2013	113	007
28 Apr 2013	111	007

Bulletin

NOAA AR 1726, the dominant source of flaring activity in the past week, is now behind the solar west limb. We expect flaring activity now to originate mostly from NOAA AR 1731. This active region near the North-East limb has developed a beta-gamma configuration. We are currently inside a speed solar wind stream but we believe most of the resulting geomagnetic activity is behind us. A return towards quiet geomagnetic conditions is expected.

Today's estimated international sunspot number (ISN): 073, based on 15 stations.

Solar indices for 25 Apr 2013

Wolf number Catania	///
10cm solar flux	119
AK Chambon La Forêt	024
AK Wingst	014
Estimated Ap	012
Estimated international sunspot number	078 - Based on 26 stations

Noticeable events summary

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

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