Przeglądasz Archiwum z sobota, 26 października 2019

Codzienne wiadomości na temat aktywności słonecznej i geomagnetycznej z SIDC

Odnotowany: 2019 Oct 26 1247 UTC

Prognoza SIDC

Rozbłyski słoneczne

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

Geomagnetyzm

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

Monitoring przepływu protonów

Quiet

	strumień 10cm	Ap
26 Oct 2019	067	023
27 Oct 2019	067	013
28 Oct 2019	067	007

Skrót wiadomości

Solar X ray flux remained below B level throughout the period. There are no active regions on disk and X-ray flux is expected to remain at background levels.

Form around 9:24UT yesterday October 25 onwards a faint slow CME front is visible along the southern Solar limb in SoHO/LASCO C2 coronagraph images. It is not believed to be related to the filament eruption reported yesterday and its origin remains unclear. In STEREO A COR2 data a corresponding CME is visible from around 6:54 UT onward, directed straight West as seen from STEREO location. Combining these data it seems likely that the CME is Earthbound with an expected arrival time around midnight October 29/30. No other Earth-directed CME's were detected in coronagraph images.

Solar high energy proton fluxes were at background levels and are expected to remain so.

Solar wind speed increased at the start of the period to around 670 km/s before starting a slow gradual decline to current values of 600 km/s. Total magnetic field was mostly in the 4-6nT range but recently increased to around 10nT. Bz was variable over the period but tended to be negative this morning with values down to -6nT and -8.5nT more recently. The phi angle was firmly in the positive sector. Solar wind is expected to slowly decline over the next 24-48 hours as the high speed stream subsides.

Geomagnetic conditions were quiet to active (NOAA Kp 3-4, local K Dourbes 2-4) with just recently a minor storming episode (NOAA Kp 5 for the 9-12UT period). Active geomagnetic conditions are likely over the next 24-48 hours before returning to unsettled conditions. Initially, isolated periods of minor geomagnetic storms are still possible.

Dzisiejsza szacunkowa międzynarodowa liczba plam na Słońcu (ISN): 000, na podstawie 22 stacji.

Indeksy solarne na 25 Oct 2019

Liczba Wolfa z Katanii	///
Fale radiowe 10,7 cm	069
AK Chambon La Forêt	031
AK Wingst	021
Szacunkowa Ap	026
Szacowana międzynarodowa liczba plam słonecznych	000 - Na podstawie stacji 24

Podsumowanie wydarzeń godnych uwagi

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

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