Het archief bekijken van dinsdag 30 april 2013

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2013 Apr 30 1247 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Warning condition (activity levels expected to increase, but no numeric forecast given)

	10cm flux	Ap
30 Apr 2013	151	003
01 May 2013	155	001
02 May 2013	158	001

Bulletin

Solar activity is on the rise with M class flares likely from NOAA ARs 1731 and 1730. The latter showed quick evolution from yesterday and is it now a beta-gamma-delta region. C flares are expected from NOAA ARs 1732, 1733 and to a lesser extent AR 1734. Warning conditions are raised for protons, due to the position of AR 1730 on the disk and the risk of M class flare. The strongest flare of the last 24 hours was a C5.9 at 2032 UT peak time, in NOAA AR 1730. No CME is associated with this event. We expect mostly quiet conditions for the geomagnetic activity during the next 48 hours. Current conditions are quiet. ACE observations show a slight increase of the solar wind speed and weak excursions of the interplanetary magnetic field.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 104, gebaseerd op 16 stations.

Zon indexen voor 29 Apr 2013

Wolfgetal Catania	149
10cm zonneflux	142
AK Chambon La Forêt	007
AK Wingst	004
Geschatte Ap	004
Geschat internationaal zonnevlekkengetal	091 - Gebaseerd op 26 stations

Overzicht opvallende gebeurtenissen

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

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