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Codzienne wiadomości na temat aktywności słonecznej i geomagnetycznej z SIDC

Odnotowany: 2021 Jun 11 1252 UTC

Prognoza SIDC

Rozbłyski słoneczne

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

Geomagnetyzm

Quiet (A<20 and K<4)

Monitoring przepływu protonów

Proton event expected (10 pfu at >10 MeV)

	strumień 10cm	Ap
11 Jun 2021	074	012
12 Jun 2021	074	007
13 Jun 2021	073	007

Skrót wiadomości

During last 24 hours solar flaring activity was very low, with only one low B-class flare reported. In the coming hours we can expect B-class flares and possibly, but not very probably, also C-class flares. Rather wide CME (about 150 degrees) first time observed in the SOHO/LASCO C2 field of view at 19:00 UT on June 10 (straight after 1h of data gap) seem to have a source region on the back side of the Sun. As such, CME is not expected to arrive to the Earth. During last 24 hours the proton flux levels remained at background values.

The greater than 2MeV electron flux is still bellow the 1000 pfu threshold, and we expect it will remain so during the next 24 hours. The 24h electron fluence is already for several days at normal levels and we expect it will stay so in the coming 24 hours.

The in situ observations show arrival of magnetic structure, possibly CME of presently unclear solar origin, starting at about 0:20 UT this morning. The interplanetary magnetic field increased rather suddenly to a value of about 8 nT, and the Bz component of the interplanetary magnetic field turned at the same time negative (- 7 nT). The phi angle also showed simultaneous change, but other plasma parameters (density, temperature and the solar wind speed) did not show any change. Such plasma conditions were maintained for several hours. We will report more when more data become available. The solar wind speed is presently about 340 km/s and the interplanetary magnetic field magnitude is 8 nT. During the last 24 hours the geomagnetic conditions were quiet to unsettled. The unsettled conditions were induced by long duration interval of the negative Bz component. We expect quiet to unsettled conditions Isolated intervals of the active geomagnetic conditions are also possible in the coming hours.

Dzisiejsza szacunkowa międzynarodowa liczba plam na Słońcu (ISN): 021, na podstawie 23 stacji.

Indeksy solarne na 10 Jun 2021

Liczba Wolfa z Katanii	030
Fale radiowe 10,7 cm	073
AK Chambon La Forêt	016
AK Wingst	006
Szacunkowa Ap	006
Szacowana międzynarodowa liczba plam słonecznych	028 - Na podstawie stacji 35

Podsumowanie wydarzeń godnych uwagi

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

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