Prohlížíte si archiv pátek 12. prosince 2014

Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2014 Dec 12 1232 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
12 Dec 2014	145	019
13 Dec 2014	150	017
14 Dec 2014	155	025

Bulletin

A large filament eruption occurring in the north/northeast (center near N20E10) part of the solar disk was the main event of the past period. It started at about 2:54 UT on December 12 and was followed by a slight increase in the GOES Xray flux and a narrow CME heading to the north/northeast. The CME was observed in SOHO/LASCO-C2 and C3 at 5:36 UT and 5:42 UT respectively. A data gap before the first measurement prevents the observation of earlier CME data. As the CME was rather narrow (estimated width of 90 degrees) and mostly northward oriented, no influence on Earth is expected. Some tiny C-class flares were detected, originating from NOAA 2230 (Catania number 30), 2234 and 2235. Flaring activity at the C-level is expected. A sector boundary crossing occurred from negative to positive phi around 22 UT on December 11, accompanied by an increase in interplanetary magnetic field magnitude (about 10 nT), solar wind speed (from 400 to maximally 600 km/s) and temperature. The Bz component is mainly negative. Quiet to unsettled conditions were observed at Dourbes, but with a time slot of active conditions. Geomagnetic conditions at unsettled up to minor storm can be expected, especially at the arrival of the coronal hole high speed stream on December 14.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 081, na základě 06 stanic.

Solární indexy za 11 Dec 2014

Wolfovo číslo Catania	///
10cm sluneční tok	148
AK Chambon La Forêt	014
AK Wingst	005
Odhadovaný Ap	004
Odhadovaný mezinárodní počet slunečních skvrn	078 - Na základě 08 stanic

Souhrn významných událostí

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

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