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Daily bulletin on solar and geomagnetic activity from the SIDC

Emitido: 2016 Jan 12 1235 UTC

SIDC Forecast

Llamarada solar

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

Geomagnetism

Quiet (A<20 and K<4)

Protones solares

Quiet

	10cm flux	Ap
12 Jan 2016	108	008
13 Jan 2016	106	007
14 Jan 2016	105	007

Bulletin

Solar activity is low, with no C-class flares reported during last 24 hours. The strongest reported flare was B6.8 flare from the Catania sunspot group 6 (NOAA AR 2483). The C-class flares are still possible, but not very probable, in the coming hours. No Earth directed CMEs were observed in the last 24 hours. The Earth is currently inside the fast solar wind with the speed of about 580 km/s. The fast flow from the narrow and elongated low latitude coronal hole (between N12 and N34) which crossed the central meridian in the early morning of January 09, arrived at the Earth at about 12:30 UT on January 11. The interplanetary magnetic field magnitude is still slightly elevated, currently about 8 nT. Due to the intervals of the negative value of the Bz component of the interplanetary magnetic field (down to -7 nT) in the evening of January 11, disturbed geomagnetic conditions were reported (NOAA reported a Kp =4 and Dourbes reported K=4). Geomagnetic conditions are currently quiet and are expected to remain so in the coming hours.

Today's estimated international sunspot number (ISN): 040, based on 13 stations.

Solar indices for 11 Jan 2016

Wolf number Catania	043
10cm solar flux	108
AK Chambon La Forêt	029
AK Wingst	017
Estimated Ap	016
Estimated international sunspot number	049 - Based on 15 stations

Noticeable events summary

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

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