Vaata neljapäev, 5 september 2013 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2013 Sep 05 1230 UTC

SIDC Forecast

Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

	10cm flux	Ap
05 Sep 2013	112	006
06 Sep 2013	114	007
07 Sep 2013	114	007

Bulletin

Solar activity has been eruptive during the past 24 hours, featuring a C1.3 flare from NOAA AR 11836 peaking at 21:35 UT on September 4. More C flares are likely within the next 48 hours, with a slight chance for an M flare, especially from NOAA AR 11836. The solar wind speed ranged between 420 and 470 km/s in the past 24 hours. In the same period, the Interplanetary Magnetic Field was low around 4 to 5 nT. The geomagnetic activity was at quiet levels (K Dourbes between 0 and 2; NOAA Kp between 0 and 2) during the past 24 hours. Quiet conditions (K Dourbes < 4) are expected for September 5 to 7.

Today's estimated international sunspot number (ISN): 044, based on 12 stations.

Solar indices for 04 Sep 2013

Wolf number Catania	///
10cm solar flux	109
AK Chambon La Forêt	009
AK Wingst	006
Estimated Ap	005
Estimated international sunspot number	054 - Based on 22 stations

Noticeable events summary

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

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