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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2015 Jul 13 1230 UTC

SIDC Forecast

Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

	10cm flux	Ap
13 Jul 2015	113	023
14 Jul 2015	113	007
15 Jul 2015	113	007

Bulletin

The Sun did not produce any C flares during the past 24 hours. Only B level flaring is expected, with a slight chance for a C flare. The Earth is currently in the aftermath of a coronal hole high speed stream. Solar wind speed first rose from 570 to 670 km/s and then declined to 510 km/s. The magnitude of the Interplanetary Magnetic Field jumped from 5 to 9 nT around 1h UT on July 13. Bz was mostly below -5 nT between 3h and 9h UT, which resulted in a minor storm (NOAA Kp = 5, K Dourbes 4-5 during that period). Quiet to unsettled geomagnetic conditions (K Dourbes < 4) with possible active excursions (K Dourbes = 4) are expected on July 13, 14, and 15.

Today's estimated international sunspot number (ISN): 056, based on 14 stations.

Solar indices for 12 Jul 2015

Wolf number Catania	///
10cm solar flux	116
AK Chambon La Forêt	///
AK Wingst	016
Estimated Ap	015
Estimated international sunspot number	079 - Based on 21 stations

Noticeable events summary

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

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