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Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2019 Oct 07 1230 UTC

SIDC Forecast

Сонячні спалахи

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

Geomagnetism

Quiet (A<20 and K<4)

Сонячні протони

Quiet

	10cm flux	Ap
07 Oct 2019	067	005
08 Oct 2019	067	006
09 Oct 2019	066	006

Bulletin

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

Solar activity is expected to remain at very low levels.

The solar wind speed gradually decreased from approximately 400 km/s to 350 km/s (ACE). The interplanetary magnetic field was predominantly directed away from the Sun (positive sector). Bz was mostly negative with values recorded between -5 and +2 nT. Geomagnetic activity was quiet to unsettled, with the Kp index (NOAA) and the local k index (Dourbes) recording values between 0-1 and 0-3, respectively.

Quiet conditions are expected to continue over the next 48 hours with possible isolated unsettled periods, due to the weak influence a negative polarity coronal hole.

Today's estimated international sunspot number (ISN): 000, based on 14 stations.

Solar indices for 06 Oct 2019

Wolf number Catania	///
10cm solar flux	067
AK Chambon La Forêt	007
AK Wingst	005
Estimated Ap	004
Estimated international sunspot number	000 - Based on 20 stations

Noticeable events summary

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

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