Archiv von Sonntag, 5 Februar 2023 anzeigen

Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2023 Feb 05 1231 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

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

Sonnenprotonen

Quiet

	10cm Fluss	Ap
05 Feb 2023	139	007
06 Feb 2023	141	014
07 Feb 2023	143	007

Bulletin

There are four active regions visible on the solar disc, all of them with beta magnetic field configuration. The strongest flare in the past 24 hours was a C6.7 flare from an active region rotating into view from the east limb. Further C class flaring is expected, M-class flares are possible.

A filament erupted around 01:00 UTC east of NOAA AR 3207, leading to a slow (about 200 km/s) and weak CME, directed to the east. Several CMEs were the seen erupting from the limb close in time to this one. These CMEs are not expected to affect the Earth.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours and is expected to remain so in the next 24 hours. The greater than 2 MeV electron flux has been below the 1000 pfu threshold and is expected to remain so. The 24h electron fluence was at normal levels and is expected to remain so over the next 24 hours.

A negative polarity equatorial coronal hole crossed the central meridian on 3 February, its associated high speed stream is expected at the Earth tomorrow.

The solar wind speed at L1 is at 350 km/s with an interplanetary magnetic field around 6 nT, with mostly negative polarity (oriented towards the Sun). Similar conditions can be expected for the next 24 hours.

Geomagnetic conditions were quiet both locally and at planetary levels. Similar conditions are expected for the next 24 hours, until the arrival of the high speed stream when active conditions are expected.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 082, basierend auf 08 Stationen.

Solarindizes für den 04 Feb 2023

Wolf-Zahl Catania	///
10cm Solarflux	139
AK Chambon La Forêt	006
AK Wingst	006
Geschätzer Ap-Wert	005
Geschätzte internationale Sonnenfleckenzahl	079 - Basierend auf 14 Stationen

Zusammenfassung auffälliger Ereignisse

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

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