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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2021 Oct 04 1206 UTC

Vorhersage des SIDC

Sonneneruptionen

Quiet conditions (<50% probability of C-class flares)

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
04 Oct 2021	084	006
05 Oct 2021	084	007
06 Oct 2021	084	007

Bulletin

The solar activity was mostly quiet over the past 24 hours, with the X-ray flux below C-level. The sunspot groups (Catania sunspot group 50, NOAA 2877) produced several B-class flares, but is now rotating over the West limb. The sunspot groups (Catania sunspot group 54, NOAA 2880) continued to decay and did not show any significant flaring activities. The returning sunspot groups on the East limb (Catania sunspot group 58, NOAA 2882) is unipolar with a magnetic field configuration Alpha does not show any significant flaring activities. The solar activity is expected to remain at low levels over the next 24 hours with a very small chances of C-class flare.

No Earth directed Coronal Mass Ejection (CME) has been observed in the available coronagraph imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours. The greater than 2 MeV electron flux was below the 1000 pfu and at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours. The greater than 2 MeV electron fluence was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.

The Earth is currently inside a slow solar wind speed regime. The solar wind parameters (as observed by ACE and DSCOVR) showed an ambient background solar wind flow over the past 24 hours: The solar wind speed ranged from 337 km/s to 416 km/s. The interplanetary magnetic field magnitude was below 5.5 nT with its Bz components fluctuating between -4.2 nT and 3.4 nT. Nominal solar wind regime is expected to persist in the next 24 hours.

The geomagnetic conditions were quiet to unsettled over the past 24 hours: Values of K-Dourbes and NOAA-Kp index between 1 and 3 were registered. Quiet to unsettled conditions are expected to remain as long as the Earth remains in slow solar wind speed regime.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 030, basierend auf 22 Stationen.

Solarindizes für den 03 Oct 2021

Wolf-Zahl Catania	///
10cm Solarflux	086
AK Chambon La Forêt	015
AK Wingst	006
Geschätzer Ap-Wert	006
Geschätzte internationale Sonnenfleckenzahl	024 - Basierend auf 17 Stationen

Zusammenfassung auffälliger Ereignisse

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

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