Het archief bekijken van dinsdag 20 augustus 2013

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2013 Aug 20 1231 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Active conditions expected (A>=20 or K=4)

Proton Flux monitor

Quiet

	10cm flux	Ap
20 Aug 2013	128	014
21 Aug 2013	128	020
22 Aug 2013	132	007

Bulletin

Flaring was eruptive featuring several C-class flares from NOAA active regions 1818, 1819 and 1825. Two CMEs were observed in the past 24 hours. The CME observed by LASCO/C2 on 19 August at 23h12 UT seems backsided and is not geo-effective. The CME observed on 20 August at 8h12 UT is associated to a large filament eruption. The CME travels with a speed of 600 km/s calculated based on STEREO data and goes mostly south of the ecliptic plane. There is a chance that Earth will be affected by the northern part of the CME structure, arriving late 23 August, possibly resulting in active to minor storm conditions. Current geomagnetic conditions are quiet to unsettled. Periods of enhanced geomagnetic activity are possible (unsettled to active) for the next 48 hours, in relation to the arrival of the equatorial coronal hole high speed stream and the CME of August 17.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 084, gebaseerd op 14 stations.

Zon indexen voor 19 Aug 2013

Wolfgetal Catania	///
10cm zonneflux	128
AK Chambon La Forêt	009
AK Wingst	006
Geschatte Ap	005
Geschat internationaal zonnevlekkengetal	091 - Gebaseerd op 24 stations

Overzicht opvallende gebeurtenissen

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

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