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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2014 Jun 17 1259 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
17 Jun 2014	112	008
18 Jun 2014	110	005
19 Jun 2014	114	006

Bulletin

The strongest flare of the past 24 hours is the C4.7 flare peaking at 05:10 UT today in the NOAA AR 2087 (Catania sunspot group 81). Although this group has the beta configuration of its photospheric magnetic field, emergence of new photospheric magnetic flux indicates that this active region may still produce more flares. NOAA AR 2089 (Catania number 82) has beta-gamma-delta configuration of its photospheric magnetic field, but it is currently producing only weak and confined C-class flares. We expect the flaring activity to continue on the C-level, with an M-class flare possible but not very likely. The Earth is currently inside a slow (around 360 km/s) solar wind flow with slightly elevated (around 6 nT) interplanetary magnetic field magnitude. The geomagnetic conditions are quiet and are expected to remain so.

Today's estimated international sunspot number (ISN): 067, based on 11 stations.

Solar indices for 16 Jun 2014

Wolf number Catania	///
10cm solar flux	117
AK Chambon La Forêt	010
AK Wingst	008
Estimated Ap	006
Estimated international sunspot number	057 - Based on 22 stations

Noticeable events summary

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

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