Visualizzazione archivio di sabato, 7 febbraio AM

Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2015 Feb 07 1231 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
07 Feb 2015	143	006
08 Feb 2015	147	007
09 Feb 2015	147	007

Bulletin

Solar activity was low with just a couple of low C class flares. The largest event was a C1.8 flare peaking at 10:50 UT from NOAA region 2277. New spot emergence was observed in the intermediate region of NOAA 2277. Flaring at C level is expected. No Earth directed CMEs have been recorded. Solar wind speed was in the 370 to 470 km/s range. The total magnetic field was roughly in the 6 to 8 nT range with Bz going through a period of consistently negative values below -7 nT between 6:00 UT and 9:30 UT. Geomagnetic conditions were quiet to unsettled (NOAA Kp 0-3, local K Dourbes 0-2). Similar solar wind conditions and quiet to unsettled geomagnetic conditions are expected to continue with.

Today's estimated international sunspot number (ISN): 053, based on 10 stations.

Solar indices for 06 Feb 2015

Wolf number Catania	///
10cm solar flux	143
AK Chambon La Forêt	010
AK Wingst	005
Estimated Ap	005
Estimated international sunspot number	066 - Based on 16 stations

Noticeable events summary

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

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