Prohlížíte si archiv středa 25. září 2019

Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2019 Sep 25 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
25 Sep 2019	067	009
26 Sep 2019	067	007
27 Sep 2019	066	017

Bulletin

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

There were no Earth-directed Coronal Mass Ejections (CME) observed in coronagraph data.

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

The solar wind speed has fluctuated between 350 and 500 km/s over the past 24 hours. The total magnetic field strength has fluctuated between 2 and 17 nT peaking at 17:00 UT yesterday. The Bz between -9 and 15 nT. Geomagnetic conditions ranged between Kp index 1-4 (NOAA) and local K index 0-3 (Dourbes).

The solar wind conditions became enhanced late yesterday and early this morning due to the arrival of a high speed stream (HSS) from a recurrent equatorial coronal hole. Solar wind conditions are expected to be enhanced throughout the day, before abating later today / early tomorrow. As a consequence geomagnetic conditions are expected to be unsettled, with some active periods due to HSS solar wind enhancements.

Around 27-Sep-2019 we may begin to feel the effects from a second larger recurrent coronal hole, which has just passed the central meridian. On the coronal holes last rotation the resultant HSS produced Kp 6 (NOAA).

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 000, na základě 13 stanic.

Solární indexy za 24 Sep 2019

Wolfovo číslo Catania	///
10cm sluneční tok	067
AK Chambon La Forêt	015
AK Wingst	014
Odhadovaný Ap	013
Odhadovaný mezinárodní počet slunečních skvrn	000 - Na základě 18 stanic

Souhrn významných událostí

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

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