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Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2016 Oct 01 1343 UTC

SIDC Forecast

Sluneční erupce

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

Geomagnetism

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

Sluneční protony

Quiet

	10cm flux	Ap
01 Oct 2016	080	021
02 Oct 2016	077	011
03 Oct 2016	075	010

Bulletin

The NOAA AR 2597 has rotated behind the west solar limb and there are no active regions on the visible side of the Sun. Solar activity is very low, and we expect it to remain so in the coming hours (no C-class flares expected). Large filament on the northern hemisphere has erupted today at about 01:20 UT. The eruption was associated with the coronal dimming, EUV wave and CME which is not expected to arrive at the Earth.

The solar wind speed is presently about 530 km/s and slowly decreasing. The interplanetary magnetic field magnitude is about 6 nT. Due to the long interval of the negative value of the Bz and the fast solar wind, disturbed geomagnetic conditions were induced yesterday evening (around 18 UT) and the local station at Dourbes reported K=5, and NOAA reported Kp=5. We expect unsettled to active geomagnetic conditions in the coming hours.

Today's estimated international sunspot number (ISN): 000, based on 13 stations.

Solar indices for 30 Sep 2016

Wolf number Catania	013
10cm solar flux	081
AK Chambon La Forêt	031
AK Wingst	026
Estimated Ap	026
Estimated international sunspot number	/// - Based on /// stations

Noticeable events summary

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

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