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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2023 May 31 1231 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
31 May 2023	162	007
01 Jun 2023	162	010
02 Jun 2023	162	016

Solaraktive Regionen und Flares

There are ten visible active regions on the solar disk. NOAA AR 3315 remains the most complex region, again with beta-gamma-delta magnetic field configuration. It produced the largest flare of the past 24 hours, M1.4 peaking at 13:38 UTC on 30 May. Nevertheless, an active region rotating into view from the east limb is also producing M-class flares and elevating the x-ray background levels. More M-class flares can be expected and X-class flares are possible.

Koronaler Massenauswurf

No Earth-directed coronal mass ejections (CMEs) were detected in the available coronagraph imagery.

Koronale Löcher

A positive polarity coronal hole in the southern hemisphere crossed the central meridian on 29 May. A related high speed solar wind stream may arrive to the Earth on 2 June.

Sonnenwind

The Earth is inside slow solar wind, with an interplanetary magnetic field around 7 nT and solar wind speed of about 380 km/s. Similar conditions are expected for the next 24 hours.

Geomagnetismus

The geomagnetic conditions over the past 24 hours were quiet (K_Belgium and Kp below 3). Mostly quiet geomagnetic conditions are expected for the next 24 hours.

Protonenflusswerte

Over the past 24 hours the greater than 10 MeV GOES proton flux was at nominal levels and is expected to remain so in the next 24 hours.

Elektronenflüsse im geostationären Orbit

The greater than 2 MeV electron flux was below the 1000 pfu threshold over the past 24 hours and is expected to remain so in the next 24 hours. The 24h electron fluence was at normal levels and is expected to remain at normal levels over the next 24 hours.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 171, basierend auf 19 Stationen.

Solarindizes für den 30 May 2023

Wolf-Zahl Catania	220
10cm Solarflux	162
AK Chambon La Forêt	///
AK Wingst	006
Geschätzer Ap-Wert	005
Geschätzte internationale Sonnenfleckenzahl	161 - Basierend auf 29 Stationen

Zusammenfassung auffälliger Ereignisse

Zur Verfügung gestellt vom Solar Influences Data Analysis Center© - SIDC - Verarbeitet von SpaceWeatherLive

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