Het archief bekijken van donderdag 17 oktober 2013

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2013 Oct 17 1259 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
17 Oct 2013	128	007
18 Oct 2013	125	007
19 Oct 2013	124	007

Bulletin

Solar activity has been low, there is potential for moderate conditions in NOAA ARs 1861 and 1865. They have been both producing C class flares, together with 1870 and 1867. AR 1865 produced the strongest flare in the past 24h: a C8.9 with peak at 14:32 UT on October 16. There was a slow faint full halo CME, seen first at 15:48 UT (first seen in LASCO C2). It was related with a C1.8 flare from NOAA AR 1870. The bulk of the material was directed towards the west, with a speed of 300 km/s. An impact with the Earth is possible early on October 21, although geomagnetic conditions are not expected to be greatly affected by this weak event. The solar wind speed at the L1 point is 450 km/s with magnetic fields around 4 nT. Geomagnetic conditions have ranged from quiet to unsettled, quiet conditions are expected for next 48h.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 102, gebaseerd op 11 stations.

Zon indexen voor 16 Oct 2013

Wolfgetal Catania	///
10cm zonneflux	128
AK Chambon La Forêt	019
AK Wingst	014
Geschatte Ap	013
Geschat internationaal zonnevlekkengetal	095 - Gebaseerd op 15 stations

Overzicht opvallende gebeurtenissen

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

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