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Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2016 May 24 1230 UTC

SIDC Prognose

Zonnevlammen

Quiet conditions (<50% probability of C-class flares)

Geomagnetisme

Active conditions expected (A>=20 or K=4)

Proton Flux monitor

Quiet

	10cm flux	Ap
24 May 2016	094	003
25 May 2016	093	007
26 May 2016	092	011

Bulletin

Eight B-class flares and one C-class event were observed during the period, with the C1.3 flare peaking at 10:20UT on 24 May. The source of all this minor flaring activity was NOAA 2546 which remains the largest sunspot group currently visible. A new small sunspot region emerged near disk centre (Catania 80; N12E01), but remained quiet. No earth-directed coronal mass ejections (CMEs) were observed.

Mostly quiet conditions are expected, with a small chance on an isolated C-class flare.

Solar wind speed mostly varied between 400 and 500 km/s. Bz varied between -6 and +6 nT, with the Interplanetary Magnetic Field directed away from the Sun. A small negative coronal hole (CH) on the southern hemisphere has transited the central meridian. Quiet geomagnetic conditions were observed.

Quiet to unsettled geomagnetic conditions are expected during the first 24 hours. Late on 25 or on 26 May, the wind stream associated with the small negative southern CH may affect the geomagnetic environment. This may result in active geomagnetic conditions.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 024, gebaseerd op 20 stations.

Zon indexen voor 23 May 2016

Wolfgetal Catania	021
10cm zonneflux	097
AK Chambon La Forêt	008
AK Wingst	004
Geschatte Ap	004
Geschat internationaal zonnevlekkengetal	016 - Gebaseerd op 23 stations

Overzicht opvallende gebeurtenissen

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

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