Перегляд архіву вівторок, 4 жовтня 2016

Daily bulletin on solar and geomagnetic activity from the SIDC

Випущено: 2016 Oct 04 1256 UTC

SIDC Forecast

Сонячні спалахи

C-class flares expected, (probability >=50%)

Geomagnetism

Active conditions expected (A>=20 or K=4)

Сонячні протони

Quiet

	10cm flux	Ap
04 Oct 2016	088	026
05 Oct 2016	090	017
06 Oct 2016	093	017

Bulletin

There are two active regions on the visible solar disc, both have simple magnetic field configuration. Solar activity has been very low, no C-class flare in past 24 h. The new AR (NOAA 2599) is still rotating into view, it might increase solar activity. C-class flaring is likely to happen. Geomagnetic conditions were unsettled to active at Dourbes, with a minor storm period at planetary levels (Kp = 5 and KDourbes = 4) overnight. This was due to solar wind with velocities reaching 575 km/s with long lasting periods of negative Bz (reaching -7 nT). Solar wind speed is now at 500 km/s with interplanetary magnetic field intensities around 9 nT. Geomagnetic conditions are expected to be unsettled to active with possible minor storm periods.

Today's estimated international sunspot number (ISN): 043, based on 18 stations.

Solar indices for 03 Oct 2016

Wolf number Catania	047
10cm solar flux	088
AK Chambon La Forêt	028
AK Wingst	019
Estimated Ap	017
Estimated international sunspot number	039 - Based on 28 stations

Noticeable events summary

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

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