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Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2019 Jan 05 1230 UTC

SIDC Předpověď

Sluneční erupce

Quiet conditions (<50% probability of C-class flares)

Geomagnetismus

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

Sluneční protony

Quiet

	10cm tok	Ap
05 Jan 2019	072	017
06 Jan 2019	071	013
07 Jan 2019	072	007

Bulletin

Solar activity remained at low levels. NOAA active region 2732 produced one B4.2 flare peaking at 11:35 UT yesterday. No geoeffective coronal mass ejections (CMEs) were observed over the last 24 hours. The greater than 10 MeV proton flux was at nominal values. Solar activity is expected to remain at low levels with some probability for C-class flares. Solar wind speed, gradually increased from about 350 till 520 km/s over the past 24 hours due to the influence of the wind stream associated with the negative polarity equatorial coronal hole. Bz varied between -9.5 and +9.5 nT and the total interplanetary magnetic field reached the value of 11 nT. Geomagnetic conditions reached minor storm level this morning 00-03UT, active conditions during 03-06UT and returned to quiet levels later due to decreased variations of Bz component. In spite of growing solar wind speed (expected to reach maximum value of 600 km/s this midnight, January 5), mostly unsettled to active geomagnetic conditions can be expected today and tomorrow. Isolated episode of minor geomagnetic storm is still possible due to the patchy structure of the coronal hole in the geoeffective position (Bz variations have some chance to increase again).

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 012, na základě 06 stanic.

Solární indexy za 04 Jan 2019

Wolfovo číslo Catania	014
10cm sluneční tok	072
AK Chambon La Forêt	030
AK Wingst	012
Odhadovaný Ap	011
Odhadovaný mezinárodní počet slunečních skvrn	014 - Na základě 20 stanic

Souhrn významných událostí

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