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Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2021 Mar 06 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
06 Mar 2021	073	018
07 Mar 2021	073	021
08 Mar 2021	073	012

Bulletin

NOAA region 2807 has shown further decay. The Sun did not produce any C flares during the past 24 hours. The chance for a C flare in the next 24 hours is estimated at 5%.

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

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours. The greater than 2 MeV electron flux was at moderate levels until about 0h UTC on March 6, when it decreased to nominal levels. Nominal levels are expected in the next 24 hours. The greater than 2 MeV electron fluence was at moderate levels during the past 24 hours. A return to nominal levels is expected in the next 24 hours.

The magnitude of the Interplanetary Magnetic Field (IMF) near Earth as registered by DSCOVR started increasing at 23:45 UTC on March 5 from about 3 nT to a maximum of about 12 nT, with current values around 6 nT. The IMF orientation switched from towards the Sun to away from the Sun around 2h UTC on March 6. Solar wind speed started increasing at 4:15 UTC on March 6 from about 390 km/s to a maximum of about 555 km/s, with current values around 520 km/s. This marks the expected arrival of a high speed stream associated with a positive polarity equatorial coronal hole that crossed the Central Meridian on March 1. Bz was below -5 nT between about 1:30 UTC and 2:15 UTC on March 6. Enhanced solar wind conditions are expected in the next 24 hours.

Quiet to active conditions (K Dourbes between 1 and 4; NOAA Kp between 0 and 4) were registered in the past 24 hours. Active conditions (K Dourbes = 4) are possible on March 6, 7 and 8, with a chance for minor storm intervals (K Dourbes = 5) on March 6 and 7.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 006, na základě 19 stanic.

Solární indexy za 05 Mar 2021

Wolfovo číslo Catania	///
10cm sluneční tok	073
AK Chambon La Forêt	020
AK Wingst	006
Odhadovaný Ap	006
Odhadovaný mezinárodní počet slunečních skvrn	012 - Na základě 20 stanic

Souhrn významných událostí

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