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Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2017 May 26 1313 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
26 May 2017	076	001
27 May 2017	077	007
28 May 2017	078	008

Bulletin

Over the past 24 hours solar activity has been low. Four B-class flares have been recorded produced by the decaying NOAA Active Region (AR) 2660 and by the developing Active Region NOAA 2659 (McIntosh Class: Dsi, Mag. Type: Beta). One returning NOAA AR is expected to appear at the east solar limb in the next 24 hours. No earth-directed coronal mass ejections (CME) have been observed. The greater than 2 MeV electron flux measured by GOES reached high levels. Solar protons have remained at background levels. Solar activity is expected to remain low over the next 24 hours with a high chance of B-class flares and some probability of C-class flares.

The variations of the solar wind parameters were weak. Solar wind speed decreased from 370 km/s till 320 km/s during the last 24 hours. The magnitude of the Interplanetary Magnetic Field (Bt) remained below 5 nT. The Bz component fluctuated between between -3 and +3 nT. Geomagnetic conditions have been very quiet in the past 24 hours (K Dourbes between 0 and 2; NOAA Kp between 1 and 2). Geomagnetic activity is expected to continue at low levels today (26-May-2016). Active to minor geomagnetic storm conditions (Kp NOAA between 3 and 4) are possible from tomorrow 27-May-2017 due to the possible arrival of the 23-May-2017 CME.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 026, na základě 28 stanic.

Solární indexy za 25 May 2017

Wolfovo číslo Catania	///
10cm sluneční tok	076
AK Chambon La Forêt	008
AK Wingst	004
Odhadovaný Ap	004
Odhadovaný mezinárodní počet slunečních skvrn	030 - Na základě 27 stanic

Souhrn významných událostí

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

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