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Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2025 Feb 20 1231 UTC

SIDC Předpověď

Sluneční erupce

M-class flares expected (probability >=50%)

Geomagnetismus

Quiet (A<20 and K<4)

Sluneční protony

Quiet

	10cm tok	Ap
20 Feb 2025	178	010
21 Feb 2025	176	007
22 Feb 2025	174	007

Slunečně aktivní oblasti a vzplanutí

A total of 8 numbered sunspot groups were identified on the disk over the past 24 hours. Solar activity has been low. The largest flare was a C8.1 flare (SIDC Flare 3659) peaking on February 19 at 23:45 UTC, which was produced by SIDC Sunspot Group 346 (NOAA Active Regions 3933, 3961, 3990). This sunspot group, together with SIDC Sunspot Group 405 (NOAA Active Region 3996, Beta-Gamma magnetic configuration) and SIDC Sunspot Group 408 (NOAA Active Region 3998, Beta-Delta magnetic configuration) have potential for creating larger flares. Solar flaring activity is expected to be moderate over the next 24 hours, with M-class flares likely and a small chance for X-class flares.

Vyhazování koronální hmoty

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

Solární bouře

The solar wind speed at Earth has been steady at around 480 km/s in the last 24 hours, with an interplanetary magnetic field currently around 5 nT. Similar conditions, with probably lower solar wind speeds, can be expected in the next 24 hours.

Geomagnetismus

Geomagnetic conditions reached active levels globally and locally (Kp and K_Bel up to 4). Mostly quiet to unsettled conditions can be expected for the next 24 hours.

Úrovně protonového toku

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.

Elektronové toky na geostacionární oběžné dráze

The greater than 10 MeV GOES 16 and 18 electron flux has been below the threshold in the last 24 hours It is expected to remain below 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.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 134, na základě 08 stanic.

Solární indexy za 19 Feb 2025

Wolfovo číslo Catania	///
10cm sluneční tok	178
AK Chambon La Forêt	026
AK Wingst	025
Odhadovaný Ap	024
Odhadovaný mezinárodní počet slunečních skvrn	117 - Na základě 13 stanic

Souhrn významných událostí

Poskytuje Centrum pro analýzu dat o solárních vlivech© - SIDC - Zpracováno SpaceWeatherLive

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