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Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2023 Oct 23 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
23 Oct 2023	118	009
24 Oct 2023	118	011
25 Oct 2023	120	017

Slunečně aktivní oblasti a vzplanutí

Solar flaring activity was at low levels in the past 24 hours. The largest flare was a C1.5 flare, peaking at 07:09 on Oct 23, associated with NOAA AR 3468. Other regions on the disc have simple configuration of their photospheric magnetic field (alpha and beta) and did not show any significant flaring activity. The solar flaring activity is expected to be at very low to low levels over the next 24 hours with a chance for C-class flares.

Vyhazování koronální hmoty

No Earth directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraph imagery.

Koronální díra

A small positive polarity equatorial coronal hole transited the central meridian today, on Oct 23.

Solární bouře

The solar wind parameters were indicative of ongoing weak transient magnetic structures. The interplanetary magnetic field ranged between 6 and 9 nT. The solar wind speed increased from 290 to 350 km/s. The southward component of the interplanetary magnetic field fluctuated between -9 nT and 8 nT. Similar conditions are expected in the next 24 hours, with a chance of a week enhancement on Oct 23 – Oct 24 due to high- speed stream influence from the small negative polarity coronal hole, which crossed the central meridian on Oct 19.

Geomagnetismus

Geomagnetic conditions were quiet to unsettled (NOAA Kp: 1 to 3 and K-BEL: 1 to 3). Geomagnetic conditions are expected to be at quiet to unsettled levels with a chance for isolated active periods on Oct 23-24 due the influence of the high speed stream.

Úrovně protonového toku

Over the past 24 hours the greater than 10 MeV GOES proton flux was at nominal levels and is expected to remain so over the next days.

Elektronové toky na geostacionární oběžné dráze

The greater than 2 MeV electron flux remained below the 1000 pfu threshold as measured by GOES 16. It is expected to remain below this threshold over the next days. The 24 hour electron fluence was at normal levels and is expected to remain so.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 033, na základě 08 stanic.

Solární indexy za 22 Oct 2023

Wolfovo číslo Catania	///
10cm sluneční tok	119
AK Chambon La Forêt	013
AK Wingst	009
Odhadovaný Ap	008
Odhadovaný mezinárodní počet slunečních skvrn	052 - Na základě 23 stanic

Souhrn významných událostí

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

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