Prohlížíte si archiv pondělí 23. září 2019

Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2019 Sep 23 1230 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
23 Sep 2019	068	014
24 Sep 2019	067	021
25 Sep 2019	067	013

Bulletin

Solar X-ray flux remained below B class levels throughout the period. The Solar disk is spotless and X-ray flux is expected to remain at or below background levels.

There are currently no SoHO-LASCO coronagraph observations available, HAO- kCOR ground-based coronagraph observations (around 18:00 UT on 22-Sep-2019) combined with STEREO-A COR coronagraph and SDO-AIA EUV observations indicate no Earth-directed CMEs (Coronal Mass Ejection) were produced. Without LASCO data to corroborate the absence of a CME, these observations should be treated with caution, with the small possibility of an unobserved Earth directed CME having been produced.

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

The solar wind speed has been slowly decreasing from around 350 to 300 km/s over the past 24 hours. The total magnetic field strength has fluctuated around 5 nT. The Bz component has been largely positive, fluctuating between -2 and 5 nT. Geomagnetic conditions ranged between Kp index 0-1 (NOAA) and local K index 0-3 (Dourbes) over the past 24 hours.

Solar wind conditions are expected to increase at the end of the day, and then become enhanced over the following 24 hours due to a high speed stream (HSS) from a recurrent equatorial coronal hole. The solar wind speed is anticipated to reach speeds exceeding 500 km/s.

Geomagnetic conditions are expected to become unsettled around the end of the day, with some active periods due to HSS solar wind enhancements.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 000, na základě 19 stanic.

Solární indexy za 22 Sep 2019

Wolfovo číslo Catania	///
10cm sluneční tok	068
AK Chambon La Forêt	005
AK Wingst	004
Odhadovaný Ap	003
Odhadovaný mezinárodní počet slunečních skvrn	000 - Na základě 22 stanic

Souhrn významných událostí

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

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