Het archief bekijken van zaterdag 11 april 2015

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2015 Apr 11 1230 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
11 Apr 2015	120	020
12 Apr 2015	123	007
13 Apr 2015	126	007

Bulletin

Beta-delta region NOAA AR 2320 released two C flares and a new region on the East limb each released one C flare during the past 24 hours. The strongest flare was the C4.7 flare produced by the new region, which peaked at 2:41 UT on April 11. In the next 24 hours, more C flaring is expected, with a chance for an M flare. During the past 24 hours, solar wind speed decreased from about 410 km/s to 360 km/s while the Interplanetary Magnetic Field (IMF) magnitude decreased from about 20 to 5 nT. Bz reached -12 nT at short intervals and stayed below -5 nT from about 13:15 to 8:15 UT. The Phi angle switched from a positive (away) towards a negative (towards) sector in the first half of April 11. Over the past 24 hours, geomagnetic conditions have been quiet to active (K Dourbes between 2 and 4; NOAA Kp between 2 and 4) as a response to the elevated solar wind speed and IMF magnitude. Quiet to active geomagnetic levels are expected to continue for the rest of April 11, while quiet levels (K Dourbes < 4) are predicted for April 12 and 13.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 031, gebaseerd op 15 stations.

Zon indexen voor 10 Apr 2015

Wolfgetal Catania	071
10cm zonneflux	115
AK Chambon La Forêt	034
AK Wingst	031
Geschatte Ap	030
Geschat internationaal zonnevlekkengetal	031 - Gebaseerd op 28 stations

Overzicht opvallende gebeurtenissen

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

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