Het archief bekijken van maandag 21 oktober 2019

Dagelijks bulletin over zonne- en geomagnetische activiteit van het SIDC

Datum verslag: 2019 Oct 21 1235 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
21 Oct 2019	066	015
22 Oct 2019	066	018
23 Oct 2019	066	007

Bulletin

Solar X ray flux remained below B level throughout the period. There are no active regions on disk and X-ray flux is expected to remain at background levels.

There were no Earth-directed CME's detected in coronagraph images.

Solar high energy proton fluxes were at background levels and are expected to remain so.

A recurrent equatorial positive polarity coronal hole is about to rotate across the central meridian and is expected to influence solar wind parameters later this week.

Solar wind conditions were nominal. Solar wind speed was between 320-360 km/s and total magnetic field was below 6.5nT with a variable Bz. The magnetic field phi angle switched to the negative sector after 18UT but was unstable with regular excursions back into the positive sector. Solar wind conditions are expected to become slightly enhanced under the elevated solar wind speeds associated to a negative polarity coronal hole.

Geomagnetic conditions were quiet to unsettled (NOAA Kp 1-3 and local K Dourbes 0-3). Geomagnetic conditions are expected to be unsettled with active periods possible over the next 24-48 hours under the expected enhanced Solar wind conditions.

Het geschatte internationale zonnevlekkengetal (ISN) van vandaag: 000, gebaseerd op 11 stations.

Zon indexen voor 20 Oct 2019

Wolfgetal Catania	///
10cm zonneflux	065
AK Chambon La Forêt	012
AK Wingst	005
Geschatte Ap	004
Geschat internationaal zonnevlekkengetal	000 - Gebaseerd op 16 stations

Overzicht opvallende gebeurtenissen

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

Alle tijden in UTC

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