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Denní bulletin o sluneční a geomagnetické aktivitě ze SIDC

Vydáno: 2025 Jun 22 1245 UTC

SIDC Předpověď

Sluneční erupce

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

Geomagnetismus

Active conditions expected (A>=20 or K=4)

Sluneční protony

Quiet

	10cm tok	Ap
22 Jun 2025	118	011
23 Jun 2025	120	014
24 Jun 2025	120	013

Slunečně aktivní oblasti a vzplanutí

The solar flaring activity was at low levels over the past 24 hours with only C-class flares identified. A total of 6 numbered sunspot groups were identified on the visible solar disk. The strongest activity were two C1.3 flares (SIDC Flare 4723 and SIDC Flare 4725), peak time 03:15 UTC and 11:01 UTC on June 22. The flares were produced by SIDC Sunspot Group 523 (NOAA Active Region 4114) and SIDC Sunspot Group 526 (NOAA Active Region 4117) respectively. SIDC Sunspot Group 523 remains the most complex active region (magnetic type beta-gamma) and is now approaching the west limb. The solar flaring activity is expected to be at low levels over the next 24 hours, with very likely C-class flares and 35% chances for M-class flaring.

Vyhazování koronální hmoty

No Earth-directed coronal mass ejections (CMEs) have been identified in the available coronagraph imagery over the past 24 hours.

Koronální díra

Part of a re-current negative-polarity mid-latitude coronal hole (SIDC Coronal Hole 116) has reached the central meridian on June 22. High speed stream emanating from this coronal hole might impact the Earth later on June 25.

Solární bouře

Over the past 24 hours the solar wind parameters (ACE and DSCOVR) remained under the mild influence of a high speed stream from a large positive-polarity coronal hole (SIDC Coronal Hole 104). The interplanetary magnetic field (B) reached a maximum value of 9.8 nT with a minimum Bz of -7.1 nT. The solar wind speed varied mostly between 450 km/s and 600 km/s, reaching a maximum of 626 km/s. The B field phi angle was predominantly in the positive sector (directed away from the Sun). The solar wind conditions are expected to continue to be under a mild influence of a high speed stream over the next days.

Geomagnetismus

The geomagnetic conditions over the past 24 hours were quiet to active. Quiet to active conditions are expected for the next 24 hours as the Earth remains under a mild influence of a high speed stream.

Úrovně protonového toku

Over the past 24 hours the greater than 10 MeV GOES proton flux has been at nominal levels and is expected to remain at nominal levels over the next days.

Elektronové toky na geostacionární oběžné dráze

The greater than 10 MeV GOES 19 electron flux briefly exceeded the 1000 pfu threshold over the last 24 hours and might briefly exceed the threshold again over the next 24 hours. The 24-hour electron fluence was at the nominal levels and is expected to remain so in the next 24 hours

Dnešní odhadovaný mezinárodní počet slunečních skvrn (ISN): 092, na základě 16 stanic.

Solární indexy za 21 Jun 2025

Wolfovo číslo Catania	///
10cm sluneční tok	120
AK Chambon La Forêt	017
AK Wingst	012
Odhadovaný Ap	012
Odhadovaný mezinárodní počet slunečních skvrn	090 - Na základě 22 stanic

Souhrn významných událostí

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

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