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Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2014 Apr 25 1246 UTC

SIDC Předpověď

Sluneční erupce

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

Geomagnetismus

Quiet (A<20 and K<4)

Sluneční protony

Quiet

	10cm tok	Ap
25 Apr 2014	127	006
26 Apr 2014	125	007
27 Apr 2014	125	012

Bulletin

NOAA 2035, already behind the west limb, produced an X1.3 flare peaking at 00:27 UT. No obvious proton flux increase has been observed so far. The event was accompanied by an EIT-wave towards the south (PROBA2/SWAP) and a CME (SOHO/LASCO and STEREO). The CME has a speed of about 500 km/s (CACTUS) and is directed away from Earth. There are currently 5 sunspot regions on disk. They are all quite small and have a quite simple magnetic configuration. An active region, responsible for backside CMEs on 22 and 25 April, is approaching the southeast limb. There's still a chance on a C-class flare, in particular from the regions near the solar limb. There's a decreasing chance on a strong flare from NOAA 2035 as it rotates further onto the Sun's farside. Solar wind speed varied between 400 and 500km/s, and Bz between -5 and +4nT being mostly negative between 21:00 and 01:00UT. Hence, quiet geomagetic conditions were observed, with locally a brief active period. A small equatorial coronal hole passed the central meridian last night. The geomagnetic field may be impacted starting around 27 April. Geomagnetic conditions are expected to be quiet, with locally a brief active interval possible.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 046, na základě 13 stanic.

Solární indexy za 24 Apr 2014

Wolfovo číslo Catania	///
10cm sluneční tok	130
AK Chambon La Forêt	020
AK Wingst	017
Odhadovaný Ap	015
Odhadovaný mezinárodní počet slunečních skvrn	053 - Na základě 22 stanic

Souhrn významných událostí

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

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