Het archief bekijken van zaterdag 11 mei 2013

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2013 May 11 1126 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
11 May 2013	125	003
12 May 2013	125	014
13 May 2013	125	007

Bulletin

Solar activity has been active during the past 24 hours, featuring four C flares and one M1.3 flare. The M flare was produced by AR 11745 (which also released the majority of the C flares) and had its peak around 12:56 UT on May 10. More C flares and even M flares are likely within the next 48 hours, especially from NOAA AR 11745. In the last 24 hours, the IMF has been steady around 4 nT, while solar wind speeds have decreased from about 440 and to 390 km/s. On May 12, a weak coronal hole high speed stream may cause solar wind speeds to increase again up to 500 km/s. Geomagnetic activity has been at quiet levels (K Dourbes between 0 and 3; NOAA Kp between 0 and 2) during the past 24 hours. Quiet geomagnetic conditions (K Dourbes < 4) are expected for May 11 to 13, with a chance for active levels (K Dourbes = 4) on May 12, due to a weak coronal hole high speed stream.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 087, gebaseerd op 06 stations.

Zon indexen voor 10 May 2013

Wolfgetal Catania	145
10cm zonneflux	125
AK Chambon La Forêt	006
AK Wingst	005
Geschatte Ap	004
Geschat internationaal zonnevlekkengetal	081 - Gebaseerd op 15 stations

Overzicht opvallende gebeurtenissen

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

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