Het archief bekijken van donderdag 17 mei 2018

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2018 May 17 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
17 May 2018	070	024
18 May 2018	070	007
19 May 2018	070	007

Bulletin

No active regions on the visible solar disc. No C-class flares in past 24 h and the situation is not expected to change.

No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar protons have remained at background levels over the past 24 h.

The solar wind speed at L1 is at 450 km /s with interplanetary magnetic field magnitude of 10 nT. The speed has increased about 150 km/s since yesterday, showing the first signs of the upcoming arrival of the high speed solar wind stream from a negative polarity coronal hole located in the southern hemisphere. Geomagnetic conditions have ranged from quiet to unsettled and active periods can be expected for the next 48 h (with isolated minor storm periods).

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 27 stations.

Zon indexen voor 16 May 2018

Wolfgetal Catania	000
10cm zonneflux	070
AK Chambon La Forêt	012
AK Wingst	004
Geschatte Ap	004
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 30 stations

Overzicht opvallende gebeurtenissen

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

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