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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2013 Jul 11 1206 UTC

SIDC Forecast

Brillamenti solari

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

Geomagnetism

Minor storm expected (A>=30 or K=5)

Protoni solari

Quiet

	10cm flux	Ap
11 Jul 2013	116	018
12 Jul 2013	116	007
13 Jul 2013	116	036

Bulletin

Solar flaring activity was eruptive during the past 24 hours. Catania sunspot group 24 (NOAA AR 1785) was responsible for the main event, a C2.0 class flare with a peak at 00h04 UT on the 11th. For the next 48 hours C-class flaring activity is expected to continue. No geo-effective CMEs were observed. Current geomagnetic conditions are unsettled to active (K=3 to 4) and are expected to return to quiet to unsettled levels in the next few hours. Geomagnetic storm levels (K=5 to 6) can be reached from 13h UT on the 13th due to arrival of the CME that erupted on the 9th.

Today's estimated international sunspot number (ISN): 051, based on 15 stations.

Solar indices for 10 Jul 2013

Wolf number Catania	085
10cm solar flux	118
AK Chambon La Forêt	026
AK Wingst	031
Estimated Ap	033
Estimated international sunspot number	051 - Based on 20 stations

Noticeable events summary

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

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