Prohlížíte si archiv pondělí 18. února 2019

Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2019 Feb 18 1230 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
18 Feb 2019	070	008
19 Feb 2019	070	014
20 Feb 2019	070	015

Bulletin

Solar activity was at very low levels. The Sun was spotless. A 10-degrees long filament in a spotless active region (former sunspot group NOAA 2733) is currently located at N10E30. No coronal mass ejections were observed over the last 24 hours. The greater than 10 MeV proton flux was at nominal values. A diffuse and patchy positive polarity equatorial coronal hole (CH) finished its transit of the central meridian yesterday 17 February.

Solar activity is expected to remain at very low levels.

Solar wind parameters were indicative of a small disturbance starting on 17 February around 15 UT. Wind speed varied mostly between 340 and 370 km/s (DSCOVR). Bz ranged between -6 and +6 nT, with a 5-hour stretch of Bz values near -5 nT centered around 00UT. The direction of the interplanetary magnetic field (phi angle) was variable. Quiet to unsettled geomagnetic conditions were observed.

Quiet to unsettled geomagnetic conditions are expected to continue, until the arrival of the co-rotating interaction region and wind stream from the positive polarity coronal hole on 19 or 20 February. This may result in active conditions, with a small chance on an isolated minor storming episode.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 000, na základě 23 stanic.

Solární indexy za 17 Feb 2019

Wolfovo číslo Catania	///
10cm sluneční tok	070
AK Chambon La Forêt	012
AK Wingst	005
Odhadovaný Ap	004
Odhadovaný mezinárodní počet slunečních skvrn	000 - Na základě 29 stanic

Souhrn významných událostí

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

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