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Daily bulletin on solar and geomagnetic activity from the SIDC

Emitido: 2016 Feb 01 1231 UTC

SIDC Forecast

Llamarada solar

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Protones solares

Quiet

	10cm flux	Ap
01 Feb 2016	098	014
02 Feb 2016	098	013
03 Feb 2016	098	007

Bulletin

There are currently three active regions (AR) on the solar disk, all having a beta classification. Only minor solar activity was produced, with a few B-class flares and a C1.6 flare. ARs 2489 and 2490 and a region (N15), currently rounding the East limb, have shown low levels of activity. No Earth directed Coronal Mass Ejections (CMEs) were observed. Solar activity is expected to remain low over the next period with a high probability of (low-level) C-class flares.

The solar wind speed remained at low values between 260 and 340 km/s. The total magnetic field magnitude was maximally at 11 nT. The Bz component was largely negative (to -8nT), before it turned positive near 8 UT.

Geomagnetic conditions were mainly quiet to unsettled (K=2-3, both local Dourbes K an NOAA estimated Kp), with one time slot of active levels (K=4) near UT midnight as a result of the period of negative Bz values. A high- speed stream, emanating from a positive polar coronal positioned in the Western hemisphere of the Sun, may result in enhanced solar wind speeds.

Today's estimated international sunspot number (ISN): 045, based on 08 stations.

Solar indices for 31 Jan 2016

Wolf number Catania	///
10cm solar flux	101
AK Chambon La Forêt	023
AK Wingst	015
Estimated Ap	013
Estimated international sunspot number	/// - Based on /// stations

Noticeable events summary

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

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