Het archief bekijken van donderdag 19 mei 2016

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2016 May 19 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
19 May 2016	102	011
20 May 2016	100	008
21 May 2016	098	007

Bulletin

Over the past 24 hours solar activity has been low. The largest flare was a B5.1 class flare, produced by Active Region (AR) 2544 (Macintosh class:Cso; Mag. type:Beta). All other ARs have been quiet. AR 2544 has exhibited some flux emergence and cancellation in HMI observations, which may lead to further flares. Solar protons have remained at background levels over the past 24 hours. 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 around 5 nT. The Bz component fluctuated between -5 and +5 nT, but has been mainly 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 and may enhance solar wind speeds at the Earth. The CME produced at 15:24 UT on 15-May-2016 has shown no influence at the Earth.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 047, gebaseerd op 20 stations.

Zon indexen voor 18 May 2016

Wolfgetal Catania	046
10cm zonneflux	102
AK Chambon La Forêt	010
AK Wingst	010
Geschatte Ap	010
Geschat internationaal zonnevlekkengetal	032 - Gebaseerd op 25 stations

Overzicht opvallende gebeurtenissen

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

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