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Codzienne wiadomości na temat aktywności słonecznej i geomagnetycznej z SIDC

Odnotowany: 2025 Jul 19 1231 UTC

Prognoza SIDC

Rozbłyski słoneczne

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

Geomagnetyzm

Quiet (A<20 and K<4)

Monitoring przepływu protonów

Quiet

	strumień 10cm	Ap
19 Jul 2025	156	011
20 Jul 2025	150	009
21 Jul 2025	140	007

Aktywne obszary słoneczne i rozbłyski

Solar flaring activity was low over the past 24 hours, with only three C-class flares identified. SIDC Sunspot Group 525 (NOAA Active Region [AR] 4135) produced the brightest flare, SIDC flare 4915 (a C3) on 19 Jul at 09:07 UTC. SIDC Sunspot Group 522 (NOAA AR 4136, Beta-Gamma magnetic configuration) produced the remaining flares, including the double flare SIDC flare 4913 (a C2) at 13:09 on 18 Jul. Further infrequent flaring activity is expected in the next 24 hours.

Koronalny wyrzut masy

No Earth-directed Coronal Mass Ejections (CME) were observed in the last 24 hours.

Wiatr słoneczny

During the past 24 hours the effects of the High Speed Stream (HSS) that arrived on 11 July subsided and the Solar Wind (SW) conditions are very gradually returning to a slow SW regime. The SW speed varied between 490 and 590 km/s, while the interplanetary magnetic field (B) ranged between 2 and 7 nT. Its North-South component (Bz) fluctuated between -6 and 6 nT. The SW conditions are expected to remain at the same levels in the next 24 hours.

Geomagnetyzm

The global geomagnetic conditions reached active levels (NOAA Kp 4) for the interval of 12:00 to 15:00 UTC on 18 Jul. The rest of the past 24 hours they varied between unsettled and quiet levels (NOAA Kp 1 to 3). The local geomagnetic conditions reached active levels (K BEL 4) for the interval of 12:00 to 18:00 UTC on 18 Jul. The rest of the past 24 hours they were at quiet levels (K BEL 1 to 2). Quiet to unsettled conditions are expected to prevail in the next 24 hours.

Poziomy przepływu protonów

The greater than 10 MeV proton flux, as measured by the GOES-19 satellite, was at background levels over the past 24 hours and is expected to remain so in the next 24 hours.

Strumienie elektronów na orbicie geostacjonarnej

The greater than 2 MeV electron flux, as measured by GOES 19, was above the 1000 pfu alert threshold during the past 24 hours. It is expected wane and fluctuate around the threshold level in the next 24 hours. The 24-hour electron fluence was at moderate levels during the past 24 hours and is expected to remain at this level in the next 24 hours.

Dzisiejsza szacunkowa międzynarodowa liczba plam na Słońcu (ISN): 162, na podstawie 14 stacji.

Indeksy solarne na 18 Jul 2025

Liczba Wolfa z Katanii	213
Fale radiowe 10,7 cm	156
AK Chambon La Forêt	023
AK Wingst	016
Szacunkowa Ap	015
Szacowana międzynarodowa liczba plam słonecznych	173 - Na podstawie stacji 27

Podsumowanie wydarzeń godnych uwagi

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

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