Viewing archive of Friday, 6 September 2013

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2013 Sep 06 1227 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
06 Sep 2013	110	006
07 Sep 2013	110	007
08 Sep 2013	110	007

Bulletin

Solar activity has been eruptive during the past 24 hours, featuring two low C flares from NOAA AR 11836 and 11837. More C flares are likely within the next 48 hours, with a slight chance for an M flare. The solar wind speed ranged between 380 and 470 km/s in the past 24 hours. In the same period, the Interplanetary Magnetic Field was low around 3 to 5 nT. The geomagnetic activity was at quiet levels (K Dourbes between 1 and 3; NOAA Kp between 1 and 2) during the past 24 hours. Quiet geomagnetic conditions (K Dourbes < 4) are expected for September 6 to 8.

Today's estimated international sunspot number (ISN): 032, based on 16 stations.

Solar indices for 05 Sep 2013

Wolf number Catania	///
10cm solar flux	110
AK Chambon La Forêt	008
AK Wingst	003
Estimated Ap	003
Estimated international sunspot number	045 - Based on 19 stations

Noticeable events summary

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

All times in UTC

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