Het archief bekijken van woensdag 17 november 2021

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2021 Nov 17 1231 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 Nov 2021	080	018
18 Nov 2021	080	012
19 Nov 2021	080	007

Bulletin

The Sun produced no C flares in the past 24 hours. The chance for a C flare in the next 24 hours is estimated at 25%.

No Earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours. The greater than 2 MeV electron flux was at nominal levels in the past 24 hours, and may rise to moderate levels in the next 24 hours. The greater than 2 MeV electron fluence was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.

The solar wind speed as registered by DSCOVR varied between about 550 and 660 km/s in the past 24 hours. The Interplanetary Magnetic Field near Earth (IMF) was oriented towards the Sun and its magnitude varied between about 1 and 8 nT. There were no extended intervals with Bz below -5 nT. Enhanced solar wind conditions are expected in the next 24 hours, followed by a gradual return towards nominal levels.

Quiet to unsettled geomagnetic conditions (K-BEL between 2 and 3; NOAA Kp between 2 and 4) were registered in the past 24 hours. Active intervals (K-BEL = 4) are possible on November 17 and 18, with a chance for minor storm intervals (K-BEL = 5). Quiet to unsettled geomagnetic levels are expected on November 19, with a chance for active intervals.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 031, gebaseerd op 08 stations.

Zon indexen voor 16 Nov 2021

Wolfgetal Catania	045
10cm zonneflux	080
AK Chambon La Forêt	018
AK Wingst	014
Geschatte Ap	014
Geschat internationaal zonnevlekkengetal	032 - Gebaseerd op 17 stations

Overzicht opvallende gebeurtenissen

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

Alle tijden in UTC

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