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Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2021 Jan 02 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
02 Jan 2021	079	002
03 Jan 2021	078	005
04 Jan 2021	077	004

Bulletin

Solar activity was at very low levels over the past 24 hours. No significant flares have been recorded. NOAA Active Region 2795 (beta) continued to decay while NOAA AR2794 (alpha) is about to rotate over the western solar limb. Solar activity is expected to remain at low levels, with a low probability of C-class flares.

No Earth directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraphic imagery. A series of filament eruptions were observed in the south of the solar disk from 22 UT Jan 01, which initially appear to be directed south of the Sun-Earth line but will be analysed when further data becomes available.

The greater than 10 MeV proton flux was at nominal levels over the past 24 hours and is expected to remain so for the next 24 hours. The greater than 2 MeV electron flux was slightly enhanced but remained below the 1000 pfu alert threshold. The electron flux is expected to remain slightly enhanced over the next 24 hours. The 24h electron fluence was at nominal levels and is expected to remain so over the next 24 hours.

Solar activity was at very low levels over the past 24 hours. No significant flares have been recorded. NOAA Active Region 2795 (beta) continued to decay while NOAA AR2794 (alpha) is about to rotate over the western solar limb. Solar activity is expected to remain at low levels, with a low probability of C-class flares.

No Earth directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraphic imagery. A series of filament eruptions were observed in the south of the solar disk from 22 UT Jan 01, which initially appear to be directed south of the Sun-Earth line but will be analysed when further data becomes available.

The greater than 10 MeV proton flux was at nominal levels over the past 24 hours and is expected to remain so for the next 24 hours. The greater than 2 MeV electron flux was slightly enhanced but remained below the 1000 pfu alert threshold. The electron flux is expected to remain slightly enhanced over the next 24 hours. The 24h electron fluence was at nominal levels and is expected to remain so over the next 24 hours.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 021, na základě 07 stanic.

Solární indexy za 01 Jan 2021

Wolfovo číslo Catania	///
10cm sluneční tok	080
AK Chambon La Forêt	007
AK Wingst	004
Odhadovaný Ap	002
Odhadovaný mezinárodní počet slunečních skvrn	023 - Na základě 20 stanic

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