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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2015 Aug 11 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 11 Aug 2015 until 13 Aug 2015
Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

10cm fluxAp
11 Aug 2015101010
12 Aug 2015097010
13 Aug 2015095010

Bulletin

Solar activity remains to be very low with only B-class flares reported during the last 24 hours. The only large sunspot group visible on the solar disc, NOAA AR 2396 is decaying but it still has potential to be the source of the B-class flares and possibly also an isolated C-class flare. No Earth directed CMEs were observed during last 24 hours.

The Earth is inside the slow solar wind with the speed of about 440 km/s. The interplanetary magnetic field magnitude was fluctuating, between 5 and 10nT, during the last 10 hours and its current value is about 5nT. The geomagnetic conditions are presently quiet and we expect them to remain so in the coming hours.

Today's estimated international sunspot number (ISN): 080, based on 21 stations.

Solar indices for 10 Aug 2015

Wolf number Catania///
10cm solar flux106
AK Chambon La Forêt017
AK Wingst010
Estimated Ap011
Estimated international sunspot number064 - Based on 30 stations

Noticeable events summary

DayBeginMaxFineLocStrengthOP10cmCatania/NOAARadio burst types
Nessuna

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

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