Het archief bekijken van zaterdag 30 april 2016

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2016 Apr 30 1230 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Minor storm expected (A>=30 or K=5)

Proton Flux monitor

Quiet

	10cm flux	Ap
30 Apr 2016	092	011
01 May 2016	095	019
02 May 2016	098	007

Bulletin

Solar activity has been low, only one C-class flare in past 24 h: a C1.2 flare that peaked at 10:47 UT from NOAA AR 2539 (Catania 66 and 67). 6 active regions are visible on the disk, 4 of them with beta magnetic field configuration, C-class flaring is likely.

Geomagnetic conditions have been quiet. Solar wind speed is currently at 350 km/s with interplanetary magnetic field magnitude of 7 nT. A sector boundary crossing from positive to negative polarity was observed at ACE around 03:00 UT, marking the upcoming arrival of an expected fast speed stream from a coronal hole. Currently two coronal holes are in Earth- affecting position, one in the northern hemisphere and one at the equator, both have negative polarity. Up to minor storm conditions are expected for today and tomorrow.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 094, gebaseerd op 19 stations.

Zon indexen voor 29 Apr 2016

Wolfgetal Catania	105
10cm zonneflux	092
AK Chambon La Forêt	005
AK Wingst	004
Geschatte Ap	003
Geschat internationaal zonnevlekkengetal	082 - Gebaseerd op 25 stations

Overzicht opvallende gebeurtenissen

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

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