Prohlížíte si archiv pondělí 11. května 2015

Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2015 May 11 1231 UTC

SIDC Předpověď

Sluneční erupce

Eruptive (C-class flares expected, probability >=50%)

Geomagnetismus

Minor storm expected (A>=30 or K=5)

Sluneční protony

Quiet

	10cm tok	Ap
11 May 2015	165	013
12 May 2015	168	031
13 May 2015	168	034

Bulletin

NOAA 2339 remains the dominant active region on the visible solar disk. Over the past 24 hours, it produced only low-level C-class flares with the emergence of some opposite polarity flux in its trailing portion. The other sunspot regions were quiet and produced at most a single low- level C-class flare. The strongest flare was a C2.5 flare peaking at 04:09UT (11 May) and was associated to a horseshoe shaped filament eruption located between active regions NOAA 2342 and 2343. Coronagraphic imagery is awaited to assess the presence and direction of any related coronal mass ejection (CME).

Further C-class flaring is expected, with a chance on an M-class flare. Unsettled to active geomagnetic conditions continued in response to the arrival of the 6 May CME. Solar wind speed declined to 350 km/s (18:00UT) and stayed at that level until about 07:00UT when it gradually started to climb to its current 380 km/s. Bz varied between -11 and +15 nT, with a sustained negative period at about -10nT between 19:00 and 02:00UT. The high speed stream of a negative coronal hole is expected to influence the geomagnetic field starting around 12 May.

Active to minor storming conditions are expected on 12 and 13 May.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 112, na základě 21 stanic.

Solární indexy za 10 May 2015

Wolfovo číslo Catania	///
10cm sluneční tok	160
AK Chambon La Forêt	019
AK Wingst	012
Odhadovaný Ap	013
Odhadovaný mezinárodní počet slunečních skvrn	109 - Na základě 28 stanic

Souhrn významných událostí

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

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