Het archief bekijken van vrijdag 17 februari 2017

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2017 Feb 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 Feb 2017	074	017
18 Feb 2017	074	021
19 Feb 2017	074	022

Bulletin

In the past 24 hours, no C flares were observed. Very low solar activity (no C flares) is expected in the next 24 hours. The solar wind near Earth is under the influence of a high speed stream by a positive coronal hole. In the past 24 hours, solar wind speed measured by DSCOVR rose from about 375 km/s to about 500 km/s, as the solar wind from the broader part of the coronal hole arrived at Earth. The magnitude of the Interplanetary Magnetic Field (IMF) varied between about 2 and 13 nT, with current values around 6 nT. There were a few short intervals with negative Bz, down to -9 nT. Quiet to active geomagnetic conditions (K Dourbes between 2 and 4; NOAA Kp between 2 and 4) were registered in the past 24 hours. Due to the influence of the high speed stream, quiet to active geomagnetic levels (K Dourbes < 5) are expected on February 17, 18 and 19, with possible minor storm episodes (K Dourbes = 5).

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 012, gebaseerd op 15 stations.

Zon indexen voor 16 Feb 2017

Wolfgetal Catania	025
10cm zonneflux	074
AK Chambon La Forêt	019
AK Wingst	008
Geschatte Ap	008
Geschat internationaal zonnevlekkengetal	012 - Gebaseerd op 35 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