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Codzienne wiadomości na temat aktywności słonecznej i geomagnetycznej z SIDC

Odnotowany: 2015 Feb 21 1225 UTC

Prognoza SIDC

Rozbłyski słoneczne

Eruptive (C-class flares expected, probability >=50%)

Geomagnetyzm

Active conditions expected (A>=20 or K=4)

Monitoring przepływu protonów

Quiet

	strumień 10cm	Ap
21 Feb 2015	120	007
22 Feb 2015	125	017
23 Feb 2015	125	009

Skrót wiadomości

Solar activity was low with four C-class flares, mainly originating from NOAA active region (AR) 2286, which has currently rounded the west limb. The strongest flare was a C2.3 flare peaking at 15:22 UT on February 20. No associated solar event was observed. A filament eruption was observed starting on February 20 at 3:24 UT near S15E15, with a CME observed in LASCO/C2 (first clear measurement near 7:36 UT ) and in LASCO/C3 (first measurement near 12:06 UT). The very slow CME (nearly 200 km/s) was directed to the south with a less than 100 degrees angular width. No Earth-directed component is expected. Flaring at C-class flares is expected. Nominal solar wind conditions were observed, with the magnitude of the interplanetary magnetic field maximally at 7 nT. The solar wind speed is currently around 350 km/s. Geomagnetic conditions were quiet to unsettled (K=1 to 3) at the local level (Dourbes) and global level (estimated NOAA Kp), which is expected to continue for the next few hours. The arrival of the anticipated coronal hole high speed stream could result in active geomagnetic conditions on February 22 (K=4, with a small chance for K=5).

Dzisiejsza szacunkowa międzynarodowa liczba plam na Słońcu (ISN): 043, na podstawie 10 stacji.

Indeksy solarne na 20 Feb 2015

Liczba Wolfa z Katanii	054
Fale radiowe 10,7 cm	120
AK Chambon La Forêt	011
AK Wingst	006
Szacunkowa Ap	005
Szacowana międzynarodowa liczba plam słonecznych	046 - Na podstawie stacji 12

Podsumowanie wydarzeń godnych uwagi

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

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