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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2013 May 22 1205 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
22 May 2013	127	008
23 May 2013	128	007
24 May 2013	130	007

Bulletin

Solar activity was eruptive the last 24 hours with 6 C-class flares, with the largest one a C2.9 flare from AR NOAA 1756. NOAA 1748 (Catania 75) has become less complex and has only a small chance in producing an M-class flare. Geomagnetic conditions where quiet to moderate and are expected to remain so for the next 48 hours.

Today's estimated international sunspot number (ISN): 084, based on 11 stations.

Solar indices for 21 May 2013

Wolf number Catania	///
10cm solar flux	125
AK Chambon La Forêt	012
AK Wingst	006
Estimated Ap	007
Estimated international sunspot number	083 - Based on 11 stations

Noticeable events summary

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

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