Archiv von Montag, 31 Juli 2017 anzeigen

Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2017 Jul 31 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
31 Jul 2017	073	013
01 Aug 2017	075	013
02 Aug 2017	075	007

Bulletin

Returning Active Region NOAA 2665 produced a B9.2 flare which peaked at 9:12 UT on July 31. C flares from NOAA 2665 are possible in the next 48 hours, with a chance for M flares. No earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels.

Solar wind speed measured by DSCOVR varied between about 320 and 380 km/s in the past 24 hours. Bz oscillated between about -5 and 4 nT. The Interplanetary Magnetic Field (IMF) was directed away from the Sun and its magnitude ranged between about 1 and 7 nT. Quiet geomagnetic conditions (K Dourbes between 0 and 2; NOAA Kp between 0 and 1) were registered in the past 24 hours. Active levels (K Dourbes = 4) are possible on July 31, August 1 and 2 due to the expected arrival of a high speed stream from a small negative equatorial coronal hole, with a slight chance for minor storm conditions (K Dourbes = 5).

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 25 Stationen.

Solarindizes für den 30 Jul 2017

Wolf-Zahl Catania	///
10cm Solarflux	070
AK Chambon La Forêt	007
AK Wingst	005
Geschätzer Ap-Wert	005
Geschätzte internationale Sonnenfleckenzahl	014 - Basierend auf 26 Stationen

Zusammenfassung auffälliger Ereignisse

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

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