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Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2019 Oct 05 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
05 Oct 2019	068	008
06 Oct 2019	068	007
07 Oct 2019	067	004

Bulletin

Solar activity was at very low levels. The Sun was spotless. No earth-directed coronal mass ejections (CMEs) have been observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal values.

Solar activity is expected to remain at very low levels.

Solar wind speed first reached a maximum wind speed near 430 km/s by 15:30UT, then started a gradual decrease ending the period near 380 km/s (ACE). The direction of the interplanetary magnetic field (phi angle) was variable. Bz varied between -6 and +6 nT, with a quieter period between -3 and +2 nT from 18UT until 09UT. Geomagnetic activity was at quiet levels, with K Dourbes recording a few unsettled episodes.

Geomagnetic activity is expected to remain at quiet to unsettled levels.

Today's estimated international sunspot number (ISN): 000, based on 09 stations.

Solar indices for 04 Oct 2019

Wolf number Catania	///
10cm solar flux	068
AK Chambon La Forêt	011
AK Wingst	010
Estimated Ap	009
Estimated international sunspot number	000 - Based on 23 stations

Noticeable events summary

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

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