Przeglądasz Archiwum z czwartek, 20 lipca 2017

Codzienne wiadomości na temat aktywności słonecznej i geomagnetycznej z SIDC

Odnotowany: 2017 Jul 20 1230 UTC

Prognoza SIDC

Rozbłyski słoneczne

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

Geomagnetyzm

Quiet (A<20 and K<4)

Monitoring przepływu protonów

Quiet

	strumień 10cm	Ap
20 Jul 2017	072	006
21 Jul 2017	071	016
22 Jul 2017	071	013

Skrót wiadomości

A C1.2 flare peaking at 00:02UT was recorded off the SouthWest Solar limb, apparently still related to NOAA region 2665, which is by now already well past the limb. With no spotted regions on disk the probability for C flares is very low over the next days. SDO/AIA 304 shows a filament eruption in the Southern hemisphere from 03:13UT onwards. There are no significant related signatures of this event in coronagraph data, and it is thus expected not to influence Earth. Proton flux levels are at background values and are expected to remain so.

Solar wind was nominal for most of the period with solar wind speed declining to values around 380 km/s and total magnetic field mostly under 4nT. The magnetic field phi angle switched back and forth three times as some expected sector boundary crossings occurred. The phi angle now indicates outward magnetic field orientation. Over the past hours, temperature as well as total magnetic field have been rising (to around 8nT presently) which could mark the first signs of the influence of the extension of the positive polarity northern polar coronal hole. Under the influence of the extension of the northern polar coronal hole solar wind speed may increase over the next few days. Geomagnetic conditions were quiet (local K Dourbes and NOAA Kp 1-2) and are expected to become quiet to unsettled with possibly some isolated active periods depending on the strength of the expected coronal hole influence.

Dzisiejsza szacunkowa międzynarodowa liczba plam na Słońcu (ISN): 000, na podstawie 27 stacji.

Indeksy solarne na 19 Jul 2017

Liczba Wolfa z Katanii	000
Fale radiowe 10,7 cm	073
AK Chambon La Forêt	007
AK Wingst	004
Szacunkowa Ap	003
Szacowana międzynarodowa liczba plam słonecznych	000 - Na podstawie stacji 33

Podsumowanie wydarzeń godnych uwagi

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

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