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Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2016 May 20 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
20 May 2016	101	013
21 May 2016	100	011
22 May 2016	099	010

Bulletin

Over the past 24 hours solar activity has been low. The largest flares were two B3.9 class flares, produced by Active Region (AR) 2546 (Mcintosh class:Cho; Mag. type:Beta). All other ARs have been quiet. Solar protons have remained at background levels over the past 24 hours. There have been no Earth directed CMEs detected. Solar activity is expected to remain low over the next 24 hours with a small probability of C-class flares. The solar wind speed has remained around 450 km/s over the past 24 hours. The total magnetic field strength has fluctuated between 5 and 9 nT. The Bz component fluctuated between -5 and +6 nT, but has been largely positive. Geomagnetic conditions ranged between Kp index 1-3 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. A large Northern positive polar coronal hole is currently positioned in the Western hemisphere of the Sun that may enhance solar wind speeds at the Earth.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 047, gebaseerd op 13 stations.

Zon indexen voor 19 May 2016

Wolfgetal Catania	///
10cm zonneflux	099
AK Chambon La Forêt	016
AK Wingst	008
Geschatte Ap	008
Geschat internationaal zonnevlekkengetal	045 - Gebaseerd op 22 stations

Overzicht opvallende gebeurtenissen

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

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