Het archief bekijken van zondag 17 november 2019

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2019 Nov 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 Nov 2019	070	007
18 Nov 2019	070	007
19 Nov 2019	070	007

Bulletin

The solar activity has been at very low levels over the past 24 hours. The Sun is currently spotless and the X-ray flux remains below B-level. Solar activity is expected to remain at low levels for the next 24 hours.

No earth-directed coronal mass ejections (CMEs) have been observed in the available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal values.

The expected enhancements in the solar environment due to the influence of the coronal hole (which has reached the central meridian on Nov 13) has arrived yesterday on Nov 16 around 17:00 UTC. The total magnetic field reached 9.5 nT at 18:00 UTC, the solar wind speed raised up to 450 km/s, and the southern component of the magnetic filed fluctuated between -7.7 nT and 9.2 nT. The enhanced solar wind conditions are expected to persist as long as the Earth remains under the influence of the coronal hole effects.

While quiet geomagnetic conditions were observed with Kp-index (NOAA), quiet to unsettle conditions were observed with the local station in Dourbes (K-Dourbes = 3) in response to the solar wind enhancement. More active conditions is not excluded, especially with the slow increase of the solar wind speed and possibly longer period of southward directed Bz component.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 12 stations.

Zon indexen voor 16 Nov 2019

Wolfgetal Catania	///
10cm zonneflux	070
AK Chambon La Forêt	011
AK Wingst	007
Geschatte Ap	006
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 18 stations

Overzicht opvallende gebeurtenissen

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

Alle tijden in UTC

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