Prohlížíte si archiv úterý 17. září 2019

Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2019 Sep 17 1230 UTC

SIDC Předpověď

Sluneční erupce

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

Geomagnetismus

Quiet (A<20 and K<4)

Sluneční protony

Quiet

	10cm tok	Ap
17 Sep 2019	068	014
18 Sep 2019	068	017
19 Sep 2019	068	008

Bulletin

Solar X ray flux remained below B level throughout the period. With a spotless disk, X-ray flux is expected to remain at or below background levels.

The filament eruption reported yesterday was associated with a very narrow and slow CME towards the West as seen by STEREO A COR2. SoHO/LASCO C2 and C3 coronagraph images show a slow and East directed CME. Based on these observations we judge that the ejecta are sufficiently East of the Sun- Earth line and no impact on Earth is expected. There were no other Earth-directed CMEs observed in coronagraph data.

Proton levels were at background values and are expected to remain so.

Solar wind speed has overall decreased to between 350-400 km/s with total magnetic field around a nominal 5nT. Bz was mostly positive and the magnetic field phi angle mostly indicated a negative sector connection with some periods in the positive sector. By the end of the day Solar wind conditions may become enhanced under the influence of a Southern hemisphere coronal hole.

Geomagnetic conditions were mostly quiet to unsettled (local K Dourbes 0-3) with an isolated active period (NOAA Kp 4) after midnight. Geomagnetic conditions are expected to be unsettled with isolated active periods possible.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 000, na základě 25 stanic.

Solární indexy za 16 Sep 2019

Wolfovo číslo Catania	000
10cm sluneční tok	069
AK Chambon La Forêt	015
AK Wingst	014
Odhadovaný Ap	015
Odhadovaný mezinárodní počet slunečních skvrn	000 - Na základě 20 stanic

Souhrn významných událostí

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

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