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Daily bulletin on solar and geomagnetic activity from the SIDC

Vydáno: 2016 Oct 07 1230 UTC

SIDC Forecast

Sluneční erupce

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

Geomagnetism

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

Sluneční protony

Quiet

	10cm flux	Ap
07 Oct 2016	102	011
08 Oct 2016	102	010
09 Oct 2016	101	010

Bulletin

Over the past 24 hours solar activity has been very low. No significant flares have been recorded. There are currently two Active Regions (ARs) near disk centre, and a new AR (2600) that emerged over the east limb. All appear stable in HMI magnetogram observations. There is a small northern polar coronal hole that is not expected to increase solar wind speeds at Earth. Although the Sun has been quiet there is a reasonable chance of C-class flares over the next 24 hours. The solar wind speed has fluctuated between 425 and 475 km/s over the past 24 hours. The total magnetic field strength has fluctuated between 4 nT and 7 nT. The Bz component fluctuated between -4 and +5 nT, but remained mainly positive. Geomagnetic conditions ranged between Kp index 0-3 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. There is currently a positive polarity Northern polar coronal hole which shouldn't affect the Earth. Geomagnetic conditions are expected to be quiet to unsettled.

Today's estimated international sunspot number (ISN): 061, based on 08 stations.

Solar indices for 06 Oct 2016

Wolf number Catania	088
10cm solar flux	102
AK Chambon La Forêt	010
AK Wingst	007
Estimated Ap	006
Estimated international sunspot number	059 - Based on 25 stations

Noticeable events summary

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

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