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Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2025 May 11 1231 UTC

SIDC Předpověď

Sluneční erupce

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

Geomagnetismus

Quiet (A<20 and K<4)

Sluneční protony

Quiet

	10cm tok	Ap
11 May 2025	131	006
12 May 2025	125	006
13 May 2025	120	005

Slunečně aktivní oblasti a vzplanutí

Solar flaring activity was low over the past 24 hours, with approximately 10 C-class flares identified. SIDC Sunspot Group 469 (NOAA Active Region 4079, Beta-Gamma magnetic configuration) produced all the flaring activity, with the brightest flare being a C5 on 10 May at 16:21 UTC. For the next 24 hours and although in decline, SIDC Sunspot Group 469 is expected to continue its flaring activity at a C-class level.

Vyhazování koronální hmoty

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

Solární bouře

During the past 24 hours the Solar Wind (SW) activity was affected by a weak High Speed Stream (HSS) that only had a short-lived effect. The SW speed initially increase to 550 km/s but has since dropped to 400 km/s. The interplanetary magnetic field (B) varied between 1 and 8 nT and its North-South component (Bz) fluctuated between -6 and 5 nT. Slow SW conditions are expected to prevail in the next 24 hours.

Geomagnetismus

The geomagnetic conditions were globally and locally quiet to unsettled (NOAA Kp 1+ to 3+ and K BEL 2 to 3) during the past 24 hours. They are expected to be mostly quiet with brief periods of unsettled levels during the next 24 hours.

Úrovně protonového toku

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

Elektronové toky na geostacionární oběžné dráze

The greater than 2 MeV electron flux, as measured by GOES 19, was below but close to the 1000 pfu alerth threshold. It is expected to drop further during the next 24 hours. The 24-hour electron fluence dropped from moderate to normal levels during the past 24 hours. It is expected to drop further and remain at normal levels in the next 24 hours.

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 072, na základě 19 stanic.

Solární indexy za 10 May 2025

Wolfovo číslo Catania	///
10cm sluneční tok	134
AK Chambon La Forêt	016
AK Wingst	012
Odhadovaný Ap	014
Odhadovaný mezinárodní počet slunečních skvrn	077 - Na základě 29 stanic

Souhrn významných událostí

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

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