Het archief bekijken van dinsdag 22 april 2014

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2014 Apr 22 1238 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
22 Apr 2014	154	006
23 Apr 2014	149	005
24 Apr 2014	144	005

Bulletin

Eleven C-class flares were observed, with 6 produced by NOAA 2035 and the other 5 by NOAA 2038. NOAA 2035 produced the strongest flare at the end of the period (C8 peaking at 11:37UT). The strongest flare from NOAA 2038 was a C5 flare peaking at 20:02UT (21 April). Together with NOAA 2045, these active regions have increased somewhat in sunspot area and magnetic complexity. The other sunspot regions are stable and/or rounding the west limb. Based on the currently available SOHO and STEREO coronagraphic imagery, no earth-directed CMEs have been observed. Further C-class flaring is expected, with a chance on an isolated M-flare. Solar wind speed declined further from around 600 to 450km/s. Bz was mostly positive, with values up to +5nT. Geomagnetic conditions evolved from active to quiet. Geomagnetic conditions are expected to remain mostly quiet.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 102, gebaseerd op 14 stations.

Zon indexen voor 21 Apr 2014

Wolfgetal Catania	///
10cm zonneflux	159
AK Chambon La Forêt	019
AK Wingst	014
Geschatte Ap	018
Geschat internationaal zonnevlekkengetal	112 - Gebaseerd op 23 stations

Overzicht opvallende gebeurtenissen

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

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