Het archief bekijken van vrijdag 5 september 2014

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2014 Sep 05 1248 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Warning condition (activity levels expected to increase, but no numeric forecast given)

	10cm flux	Ap
05 Sep 2014	150	007
06 Sep 2014	155	003
07 Sep 2014	160	003

Bulletin

Eight C-class flares were produced, mainly by Catania sunspot group 45, 44 and 40 (NOAA AR 2157, 2155 and 2152 respectively). The strongest flare was a C6.7 flare, peaking at 6:54 UT on September 5, originating from Catania group 45. A partial halo CME (apparent width of about 120 degrees), with first measurement at 7:12 UT in SOHO/LASCO C2, was associated with this flare. The CME is travelling East of the Sun-Earth line with a projected plane-of-the-sky speed of 650 km/s and is not expected to arrive at Earth. We expect flaring activity up to the M-level, in particular from the Catania groups 44 and 45 and the former NOAA AR 2139. The solar proton flux currently remains stable below the SEP event threshold. We maintain the warning condition for a proton event. The Earth is currently inside a slow (around 370 km/s) solar wind flow with average (around 5 nT) interplanetary magnetic field magnitude. The geomagnetic conditions are quiet and are expected to remain so.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 075, gebaseerd op 09 stations.

Zon indexen voor 04 Sep 2014

Wolfgetal Catania	114
10cm zonneflux	146
AK Chambon La Forêt	010
AK Wingst	007
Geschatte Ap	008
Geschat internationaal zonnevlekkengetal	085 - Gebaseerd op 18 stations

Overzicht opvallende gebeurtenissen

Aangeboden door het Solar Influences Data Analysis Center© - SIDC - Verwerkt door SpaceWeatherLive

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