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Codzienne wiadomości na temat aktywności słonecznej i geomagnetycznej z SIDC

Odnotowany: 2025 Feb 19 1231 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
19 Feb 2025	185	026
20 Feb 2025	183	007
21 Feb 2025	181	007

Aktywne obszary słoneczne i rozbłyski

A total of 9 numbered sunspot groups were identified on the disk over the past 24 hours. Solar flaring activity was low over the past 24 hours, with only C-class flares identified. The largest flare was a C4.2 flare (SIDC Flare 3654) peaking on February 19 at 10:49 UTC, which was produced by SIDC Sunspot Group 404 (NOAA Active Region 3997). Solar flaring activity is expected to be low over the next 24 hours, with C-class flares very likely and a M-class flares possible.

Koronalny wyrzut masy

No Earth directed CMEs were observed in the last 24 hours.

Dziury koronalne

SIDC Coronal Hole 91 (high-latitude coronal hole with a positive polarity) crossed the central meridian on February 16. This CH is located at high northern latitudes, so its solar wind will probably not affect the Earth.

Wiatr słoneczny

The solar wind speed at Earth has been steady at around 500 km/s in the last 24 hours, with an interplanetary magnetic field currently around 8 nT. The interplanetary magnetic field was slightly elevated (reaching 11 nT, with Bz down to - 8 nT) in the last 24 hours, this was probably related to a mild glancing blow of a CME leaving the Sun on 15 February. A gradual transition to slower solar wind can be expected in the next 24 hours, with low chances of seeing an ICME arrival corresponding to the CME of 16 February.

Geomagnetyzm

Geomagnetic conditions reached minor storm levels with Kp up to 5 between 00:00 UTC to 03:00 UTC. Mostly unsettled to active conditions can be expected for the next 24 hours, with low chances of more disturbed periods if the ICME corresponding to the CME of 16 February arrives (low chances).

Poziomy przepływu protonów

The greater than 10 MeV proton flux was below the threshold level over the past 24 hours. It is expected to remain below the threshold level over the next 24 hours.

Strumienie elektronów na orbicie geostacjonarnej

The greater-than-10 MeV GOES 16 and 18 electron flux has been above the threshold in the last 24 hours, but it is currently below it. It is expected to rise above the threshold in the next 24 hours. The 24-hour electron fluence is currently at normal levels and is expected to remain so in the next 24 hours.

Dzisiejsza szacunkowa międzynarodowa liczba plam na Słońcu (ISN): 127, na podstawie 10 stacji.

Indeksy solarne na 18 Feb 2025

Liczba Wolfa z Katanii	///
Fale radiowe 10,7 cm	178
AK Chambon La Forêt	028
AK Wingst	016
Szacunkowa Ap	016
Szacowana międzynarodowa liczba plam słonecznych	159 - Na podstawie stacji 21

Podsumowanie wydarzeń godnych uwagi

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

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