Het archief bekijken van dinsdag 21 mei 2013

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2013 May 21 1230 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
21 May 2013	130	007
22 May 2013	132	007
23 May 2013	135	007

Bulletin

Solar activity was eruptive the last 24 hours with 7 C flares mostly originating from AR NOAA 1748 (Catania 75) which has become more complex again since yesterday. AR NOAA 1750 (Catania 78) is decaying, but still has a possibility to produce M flares and due to its position, also a proton event. A CME was detected by LASCO C2 on May 20th around 13:00 UT with an angle of around 150 degrees and a speed around 340 km/s. It should reach Earth on May 24th around 19:00 UT, but should only have minor impact. It originated from AR 1748 with a C flare around 10:30 UT. Geomagnetic conditions where quiet to moderate and are expected to remain so for the next 48 hours.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 076, gebaseerd op 06 stations.

Zon indexen voor 20 May 2013

Wolfgetal Catania	120
10cm zonneflux	132
AK Chambon La Forêt	011
AK Wingst	010
Geschatte Ap	008
Geschat internationaal zonnevlekkengetal	074 - Gebaseerd op 14 stations

Overzicht opvallende gebeurtenissen

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

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