Viewing archive of Friday, 23 September 2016

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2016 Sep 23 1231 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
23 Sep 2016	085	005
24 Sep 2016	085	007
25 Sep 2016	085	007

Bulletin

Solar activity was low. Beta region NOAA AR 2595 produced a C2.6 flare with peak time 19:16 UT on September 22. Low solar activity (C flaring) is expected in the next 24 hours. Solar wind speed measured by DSCOVR gradually decreased further from about 465 to about 410 km/s. Meanwhile the magnitude of the Interplanetary Magnetic Field varied beween about 2 and 7 nT. Quiet geomagnetic conditions (K Dourbes between 0 and 2, NOAA Kp between 0 and 2) were registered in the past 24 hours. Quiet to unsettled levels are expected on September 23, 24 and 25.

Today's estimated international sunspot number (ISN): 056, based on 18 stations.

Solar indices for 22 Sep 2016

Wolf number Catania	031
10cm solar flux	085
AK Chambon La Forêt	006
AK Wingst	003
Estimated Ap	003
Estimated international sunspot number	035 - Based on 26 stations

Noticeable events summary

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

All times in UTC

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