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Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2017 Mar 21 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
21 Mar 2017	075	023
22 Mar 2017	077	024
23 Mar 2017	079	024

Bulletin

In the past 24 hours, no C flares were observed. Very low solar activity (no C flares) is expected in the next 24 hours. Solar wind speed measured by DSCOVR has gradually increased from about 320 km/s around 21h UT on March 20 to a peak near 570 km/s around 10h UT on March 21, with current values around 520 km/s. In the same period, the magnitude of the Interplanetary Magnetic Field has risen from about 5 nT to a maximum of 18 nT around 7:20 UT on March 21, with current levels around 10 nT. Bz was below -10 nT between about 5:45 and 6:20 UT on March 20, and has fluctuated a lot outside of this interval. The enhanced solar wind conditions are expected to continue on March 21 and 22. Quiet to active geomagnetic conditions (K Dourbes between 1 and 4; NOAA Kp between 0 and 4) were registered in the past 24 hours. Due to the enhanced solar wind conditions by the passage of a high speed stream from a positive coronal hole, quiet to active levels (K Dourbes < 5) are expected on March 21, 22 and 23, with a chance for minor geomagnetic storm intervals (K Dourbes = 5).

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 012, na základě 13 stanic.

Solární indexy za 20 Mar 2017

Wolfovo číslo Catania	000
10cm sluneční tok	073
AK Chambon La Forêt	007
AK Wingst	002
Odhadovaný Ap	002
Odhadovaný mezinárodní počet slunečních skvrn	000 - Na základě 18 stanic

Souhrn významných událostí

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

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