Archiv von Mittwoch, 7 August 2019 anzeigen

Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2019 Aug 07 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
07 Aug 2019	068	009
08 Aug 2019	067	005
09 Aug 2019	067	004

Bulletin

Solar activity was at very low levels. Small sunspot region NOAA 2747 developed during the period (N06E10; McIntosh class: Axx; MtWilson class: Alpha), but had almost decayed by noon on 7 August. No earth- directed coronal mass ejections (CME) were observed. The greater than 10 MeV proton flux was at nominal values. An irregular shaped negative polarity coronal hole is transiting the central meridian.

Solar activity is expected to remain at very low levels.

The earth environment remained under the influence of the high-speed stream (HSS) of the positive polarity coronal hole. Solar wind speed declined from values near 650 km/s to about 500 km/s by the end of the period (ACE). Bz varied between -4 and + 3 nT. The interplanetary magnetic field (phi angle) was mostly directed away from the Sun (positive sector).

Geomagnetic activity was at quiet to unsettled levels, and is expected to continue under the waning influence of the HSS.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 011, basierend auf 14 Stationen.

Solarindizes für den 06 Aug 2019

Wolf-Zahl Catania	///
10cm Solarflux	068
AK Chambon La Forêt	018
AK Wingst	013
Geschätzer Ap-Wert	012
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 27 Stationen

Zusammenfassung auffälliger Ereignisse

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

Alle Zeiten in UTC

<< Zum Tagesübersicht