Het archief bekijken van dinsdag 17 september 2019

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2019 Sep 17 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
17 Sep 2019	068	014
18 Sep 2019	068	017
19 Sep 2019	068	008

Bulletin

Solar X ray flux remained below B level throughout the period. With a spotless disk, X-ray flux is expected to remain at or below background levels.

The filament eruption reported yesterday was associated with a very narrow and slow CME towards the West as seen by STEREO A COR2. SoHO/LASCO C2 and C3 coronagraph images show a slow and East directed CME. Based on these observations we judge that the ejecta are sufficiently East of the Sun- Earth line and no impact on Earth is expected. There were no other Earth-directed CMEs observed in coronagraph data.

Proton levels were at background values and are expected to remain so.

Solar wind speed has overall decreased to between 350-400 km/s with total magnetic field around a nominal 5nT. Bz was mostly positive and the magnetic field phi angle mostly indicated a negative sector connection with some periods in the positive sector. By the end of the day Solar wind conditions may become enhanced under the influence of a Southern hemisphere coronal hole.

Geomagnetic conditions were mostly quiet to unsettled (local K Dourbes 0-3) with an isolated active period (NOAA Kp 4) after midnight. Geomagnetic conditions are expected to be unsettled with isolated active periods possible.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 25 stations.

Zon indexen voor 16 Sep 2019

Wolfgetal Catania	000
10cm zonneflux	069
AK Chambon La Forêt	015
AK Wingst	014
Geschatte Ap	015
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 20 stations

Overzicht opvallende gebeurtenissen

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

Alle tijden in UTC

<< Keer terug naar de dagelijkse overview pagina