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Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2019 Oct 21 1235 UTC

SIDC Předpověď

Sluneční erupce

Quiet conditions (<50% probability of C-class flares)

Geomagnetismus

Active conditions expected (A>=20 or K=4)

Sluneční protony

Quiet

	10cm tok	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.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 000, na základě 11 stanic.

Solární indexy za 20 Oct 2019

Wolfovo číslo Catania	///
10cm sluneční tok	065
AK Chambon La Forêt	012
AK Wingst	005
Odhadovaný Ap	004
Odhadovaný mezinárodní počet slunečních skvrn	000 - Na základě 16 stanic

Souhrn významných událostí

Poskytuje Centrum pro analýzu dat o solárních vlivech© - SIDC - Zpracováno SpaceWeatherLive

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