Het archief bekijken van woensdag 24 april 2019

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2019 Apr 24 1230 UTC

SIDC Prognose

Zonnevlammen

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

Geomagnetisme

Quiet (A<20 and K<4)

Proton Flux monitor

Quiet

	10cm flux	Ap
24 Apr 2019	069	010
25 Apr 2019	069	007
26 Apr 2019	069	007

Bulletin

No flares in the past 24 h. No active regions visible on the solar disk. Solar activity is expected to be low.

No Earth directed CMEs in past 24 h. Solar protons have remained at background levels over the past 24 hours.

The solar wind speed is at 420 km/s with interplanetary magnetic field magnitude of 4 nT. Geomagnetic conditions reached active levels locally at Dourbes (K = 4) between 00:00 UT and 03:00 UT. At planetary levels Kp was at 3 between 18:00 UT on April 23 and 03:00 UT today. This was due to the expected arrival of a solar wind stream from a negative polarity coronal hole. The effect was weak, as the speeds did not go beyond 430 km/s with interplanetary magnetic fields up to 11 nT, with Bz reaching -8nT. Quiet to unsettled conditions expected for the next 48 h.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 16 stations.

Zon indexen voor 23 Apr 2019

Wolfgetal Catania	///
10cm zonneflux	069
AK Chambon La Forêt	025
AK Wingst	///
Geschatte Ap	011
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 26 stations

Overzicht opvallende gebeurtenissen

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

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