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Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2018 Apr 02 1230 UTC

SIDC Forecast

Sluneční erupce

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

Geomagnetism

Quiet (A<20 and K<4)

Sluneční protony

Quiet

	10cm flux	Ap
02 Apr 2018	069	004
03 Apr 2018	070	007
04 Apr 2018	071	007

Bulletin

Alpha region NOAA AR 2703 has produced a few low B flares and a B9.0 flare in the past 24 hours. The chance for a C flare in the next 24 hours is estimated at 40%, mainly from AR 2703. No Earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to remain so. Solar wind speed as registered by DSCOVR varied between about 430 and 475 km/s, with current values around 440 km/s. The Interplanetary Magnetic Field (IMF) was below 5.3 nT. Bz component varied mainly between -3 and 3 nT being mainly positive. Quiet geomagnetic conditions (K Dourbes between 1 and 2; NOAA Kp between 1 and 2) were registered in the past 24 hours. Mostly quiet geomagnetic levels (K Dourbes < 3) are expected on April 2, 3 and 4.

Today's estimated international sunspot number (ISN): 000, based on 16 stations.

Solar indices for 01 Apr 2018

Wolf number Catania	///
10cm solar flux	069
AK Chambon La Forêt	009
AK Wingst	006
Estimated Ap	004
Estimated international sunspot number	007 - Based on 17 stations

Noticeable events summary

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

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