Viewing archive of Saturday, 14 October 2017

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2017 Oct 14 1355 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Moderate (ISES: Major) magstorm expected (A>=50 or K=6)

Solar protons

Quiet

	10cm flux	Ap
14 Oct 2017	073	046
15 Oct 2017	074	027
16 Oct 2017	073	011

Bulletin

Solar activity was at very low levels. There is no sunspots on the visible side of solar disk. No coronal mass ejections (CMEs) were observed. Integral proton flux for protons with energies above 10 MeV remained at background level. Quiet flaring conditions are expected. The earth environment is under the influence of a coronal hole fast wind stream. Solar wind speed increased from 600 till 700 km/s over the past 24 hours. Total interplanetary magnetic filed decreased from 9 till 6 nT, while its Bz component fluctuated between -7 and 7 nT, being rather negative. The geomagnetic field was from minor to moderate storm level with only 2 episodes of active conditions at planetary level. Locally in Dourbes geomagnetic field was ranged from active to minor storm level. Geomagnetic conditions are expected to continue mostly at minor storm level. Some episodes of moderate storms are also not excluded for the nexr 24 hours.

Today's estimated international sunspot number (ISN): 008, based on 22 stations.

Solar indices for 13 Oct 2017

Wolf number Catania	000
10cm solar flux	070
AK Chambon La Forêt	063
AK Wingst	033
Estimated Ap	042
Estimated international sunspot number	000 - Based on 24 stations

Noticeable events summary

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

All times in UTC

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