Archiv von Donnerstag, 11 November 2021 anzeigen

Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2021 Nov 11 1231 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
11 Nov 2021	084	008
12 Nov 2021	082	015
13 Nov 2021	082	010

Bulletin

Over the past 24 hours the solar activity was at very low levels with low B-class flaring. The three active regions on the visible solar disc (NOAA 2893/alpha, NOAA 2894/alpha and NOAA 2895/beta) remained inactive and stable. The solar activity is expected to be at very low levels over the next 24 hours with a small chance for a C-class flare.

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

Over the past 24 hours the greater than 10 MeV proton flux has returned to background levels and is expected to remain so in the next 24 hours. The greater than 2MeV electron was under the 1000 pfu threshold and is expected to remain so for the next 24 hours. The 24h electron fluence was at nominal levels and is expected to remain so.

Over the past 24 hours the solar wind parameters (ACE and DSCOVR) remained at background slow solar wind conditions. The solar wind velocity smoothly varied in the range of 382 to 469 km/s. The interplanetary magnetic field was weak with maximum value of 5.8 nT. The Bz component was very weak with minimum value of -4.2 nT. The interplanetary magnetic was predominantly in the positive sector (directed away from the Sun). The solar wind parameters are expected to remain at background solar wind conditions until Nov 12th, when enhancements are possible if any high speed stream (HSS) from the small mid-latitude coronal hole, which crossed central meridian on Nov 9th, reaches the Earth.

The geomagnetic conditions over the past 24 hours were quiet and quiet to unsettled conditions are expected for the next 24 hours with possible isolated active periods due to the potential HSS arrival.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 042, basierend auf 13 Stationen.

Solarindizes für den 10 Nov 2021

Wolf-Zahl Catania	///
10cm Solarflux	088
AK Chambon La Forêt	007
AK Wingst	008
Geschätzer Ap-Wert	007
Geschätzte internationale Sonnenfleckenzahl	039 - Basierend auf 28 Stationen

Zusammenfassung auffälliger Ereignisse

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

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