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Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2020 Aug 22 1256 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
22 Aug 2020	071	007
23 Aug 2020	071	008
24 Aug 2020	072	003

Bulletin

Solar flaring activity was at very low levels. No significant flares have been recorded. A B1.6 flare recorded at Aug 21 (01:58UT, S31E52) was followed by a coronal dimming, visible in SDO/AIA data. Solar activity is expected to remain at very low levels.

No Earth directed Coronal Mass Ejections (CMEs) were observed in the available coronagraphic imagery.

The greater than 10 MeV proton flux was at background levels over the past 24 hours. It is expected to stay at background levels for the next 24 hours. The greater than 2 MeV electron flux was at nominal levels over the past 24 hours and is expected to remain so over the next 24 hours.

The speed of the solar wind varied between 310 and 365 km/s (DSCOVR). The polarity of the Interplanetary Magnetic Field (IMF) was predominatly towards the Sun (phi angle in the negative sector) until Aug 21 22:00UT, while varying since then. Bz fluctuated between -6 and +7 nT. The magnitude of the magnetic field varied between 1 and 8 nT. The extension of the Northern coronal hole is crossing central meridian. Over the next 24 hours, the solar wind parameters are expected to be slightly influenced from the remaining HSS of the coronal hole crossing central meridian Aug 19.

The geomagnetic conditions were quiet to unsettled. The values registered for the past 24 hours were 0-3 for K Dourbes and 1-2 for NOAA Kp. Quiet to unsettled conditions are expected for the next 24 hours.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 000, na základě 24 stanic.

Solární indexy za 21 Aug 2020

Wolfovo číslo Catania	///
10cm sluneční tok	071
AK Chambon La Forêt	009
AK Wingst	006
Odhadovaný Ap	004
Odhadovaný mezinárodní počet slunečních skvrn	004 - Na základě 28 stanic

Souhrn významných událostí

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

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