Przeglądasz Archiwum z czwartek, 18 marca 2021

Codzienne wiadomości na temat aktywności słonecznej i geomagnetycznej z SIDC

Odnotowany: 2021 Mar 18 1232 UTC

Prognoza SIDC

Rozbłyski słoneczne

Quiet conditions (<50% probability of C-class flares)

Geomagnetyzm

Minor storm expected (A>=30 or K=5)

Monitoring przepływu protonów

Quiet

	strumień 10cm	Ap
18 Mar 2021	078	006
19 Mar 2021	077	019
20 Mar 2021	078	028

Skrót wiadomości

Solar activity was very low in the past 24 hours. NOAA Active Region (AR) 2810 (alpha) is the only active region on disk and has been quiet. Solar activity is expected to remain at very low levels, with a small chance of a c-class flare.

No Earth-directed CMEs have been observed in the available coronagraph data.

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 exceeded the 1000 pfu threshold during the first part of the period before gradually decreasing. The greater than 2 MeV electron flux is expected to again briefly exceed the 1000 pfu threshold during the next 24 hours. The 24h electron fluence was at moderate levels and it is expected to be at nominal to moderate levels in the next 24 hours.

Solar wind conditions reflected a slow solar wind regime over the last 24 hours. The solar wind speed ranged between 310 km/s and 360 km/s. The total interplanetary magnetic field varied between 0 and 7 nT. The magnetic field phi angle was predominantly in the positive sector (directed away from the Sun). Solar wind conditions are expected to continue reflect a slow solar wind regime on Mar 18. The solar wind parameters are expected to become enhanced from late on Mar 19, due to the effect from the corotating interaction region (CIR) and high-speed stream associated with the negative polarity coronal hole, which crossed the central meridian on Mar 17.

Geomagnetic conditions were mostly at quiet levels with local unsettled periods (NOAA Kp 1-2 and local K Dourbes 1-3). Geomagnetic conditions are expected to be at quiet levels over the next 24 hours. However, the geomagnetic conditions are expected to reach active levels from late on the Mar 19, with minor storm conditions possible on Mar 20, due to the arrival of the expected high-speed stream.

Dzisiejsza szacunkowa międzynarodowa liczba plam na Słońcu (ISN): 012, na podstawie 11 stacji.

Indeksy solarne na 17 Mar 2021

Liczba Wolfa z Katanii	011
Fale radiowe 10,7 cm	078
AK Chambon La Forêt	009
AK Wingst	005
Szacunkowa Ap	003
Szacowana międzynarodowa liczba plam słonecznych	012 - Na podstawie stacji 19

Podsumowanie wydarzeń godnych uwagi

Dostarczone przez Centrum Analizy Danych Wpływów Słonecznych© - SIDC - Przetworzone przez SpaceWeatherLive

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