Przeglądasz Archiwum z poniedziałek, 12 lutego 2018

Codzienne wiadomości na temat aktywności słonecznej i geomagnetycznej z SIDC

Odnotowany: 2018 Feb 12 1304 UTC

Prognoza SIDC

Rozbłyski słoneczne

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

Geomagnetyzm

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

Monitoring przepływu protonów

Quiet

	strumień 10cm	Ap
12 Feb 2018	077	012
13 Feb 2018	078	012
14 Feb 2018	077	005

Skrót wiadomości

Over the past 24 hours solar activity has been low. The largest flare was a C1.5 class flare. Active Region (AR) 2699 (Mcintosh class:Dai; Mag. type:Beta) has been most active, showing considerable flux emergence and cancellation, producing the C1.5-class flare, which peaked at 01:35 UT this morning (12-feb-2018). The greater than 10MeV proton flux remained at background levels over the past 24 hours. Observations of coronal dimmings and EUV waves from EUV imagery yesterday at 20:40 UT (11-Feb-2018) and today at 01:41 UT suggests AR 2699 produced a couple of eruptions. Coronagraph imagery is currently unavailable to estimate the extent of any associated CMEs, and estimate a possible arrival time, but the source region is located near disk centre and any associated eruption may interact with the Earth. AR 2699 is expected to produce further flares and eruptions. The solar wind speed has increased from around 300 to 325 km/s over the past 24 hours. The total magnetic field strength has remained around 5 nT. The Bz component was largely positive, fluctuating between -5 and +5 nT. Geomagnetic conditions ranged between Kp index 0-2 (NOAA) and local K index 0-3 (Dourbes) over the past 24 hours. A small positive polarity coronal hole passed the central meridian a couple of days ago and may enhance solar wind speeds over the coming days. Evidence of a small eruption that occurred near disk centre this morning may indicate an eruption will enhance geomagnetic conditions in a few days. Geomagnetic conditions are expected to be quiet to unsettled.

Dzisiejsza szacunkowa międzynarodowa liczba plam na Słońcu (ISN): 027, na podstawie 19 stacji.

Indeksy solarne na 11 Feb 2018

Liczba Wolfa z Katanii	///
Fale radiowe 10,7 cm	078
AK Chambon La Forêt	005
AK Wingst	002
Szacunkowa Ap	001
Szacowana międzynarodowa liczba plam słonecznych	030 - Na podstawie stacji 18

Podsumowanie wydarzeń godnych uwagi

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

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