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Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2018 Aug 05 1230 UTC

SIDC Předpověď

Sluneční erupce

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

Geomagnetismus

Quiet (A<20 and K<4)

Sluneční protony

Quiet

	10cm tok	Ap
05 Aug 2018	071	010
06 Aug 2018	071	010
07 Aug 2018	071	011

Bulletin

Solar activity was at very low levels. The Sun was spotless. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels.

Solar activity is expected to remain at very low levels.

Solar wind speed varied between 380 and 330 km/s, ending the period near 340 km/s (DSCOVR). Bz was near neutral values until midnight, when it started varying between -6 and +6 nT. The interplanetary magnetic field was mostly directed away from the Sun (positive sector) until around 04:30UT when it turned towards the Sun (negative sector), indicative of a possible sector boundary crossing. Quiet geomagnetic conditions were observed, with an isolated unsettled interval at Dourbes (06-09UT).

Geomagnetic activity is expected to continue at quiet to unsettled levels. In response to a weak wind stream associated with a small negative polarity equatorial coronal hole (CH), an active interval is possible on 5 or 6 August. Another wind stream enhancement associated with a small positive polarity equatorial CH may start influencing the earth environment around 7 August, which may result in an isolated active episode.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 000, na základě 22 stanic.

Solární indexy za 04 Aug 2018

Wolfovo číslo Catania	///
10cm sluneční tok	070
AK Chambon La Forêt	008
AK Wingst	006
Odhadovaný Ap	006
Odhadovaný mezinárodní počet slunečních skvrn	000 - Na základě 26 stanic

Souhrn významných událostí

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

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