Vaata kolmapäev, 4 september 2013 arhiivi

Daily bulletin on solar and geomagnetic activity from the SIDC

Välja antud: 2013 Sep 04 1215 UTC

SIDC Forecast

Valid from 1230 UTC, 04 Sep 2013 until 06 Sep 2013
Päikesepursked ehk loited

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

Geomagnetism

Quiet (A<20 and K<4)

Päikese prootonid

Quiet

10cm fluxAp
04 Sep 2013108008
05 Sep 2013110017
06 Sep 2013112007

Bulletin

Solar activity has been eruptive during the past 24 hours, featuring nine C flares. The brightest flare (C3.6) peaked at 04:28 UT on September 4 and was produced by NOAA AR 11837 like most C flares in this period. More C flares are likely within the next 48 hours, with a slight chance for an M flare, especially from NOAA AR 11837. The solar wind speed ranged between 380 and 480 km/s in the past 24 hours. In the same period, the Interplanetary Magnetic Field decreased from around 8 to 4 nT. The geomagnetic activity was at quiet levels (K Dourbes between 1 and 3; NOAA Kp between 1 and 3) during the past 24 hours. Quiet conditions (K Dourbes < 4) are expected for September 4 to 6, with a chance for active periods on September 5, due to the effects of a Coronal Hole high speed stream.

Today's estimated international sunspot number (ISN): 052, based on 14 stations.

Solar indices for 03 Sep 2013

Wolf number Catania///
10cm solar flux106
AK Chambon La Forêt013
AK Wingst008
Estimated Ap007
Estimated international sunspot number051 - Based on 21 stations

Noticeable events summary

DayBeginMaxLõppLocStrengthOP10cmCatania/NOAARadio burst types
Puuduvad

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

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