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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2016 Sep 20 1238 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

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

Sonnenprotonen

Quiet

	10cm Fluss	Ap
20 Sep 2016	083	026
21 Sep 2016	083	016
22 Sep 2016	083	007

Bulletin

Solar activity was very low. No C flares were observed in the past 24 hours. Solar activity is expected to remain very low (no C flaring) for the next 24 hours. Solar wind speed measured by DSCOVR rose gradually from about 390 to about 720 km/s after the arrival of a coronal hole high speed stream around 0h UT on September 20. Meanwhile the magnitude of the Interplanetary Magnetic Field increased from about 10 nT to a maximum of about 21 nT around 20:30 UT on September 19, and decreased again to current values around 5 nT. Bz was predominantly positive, but was mainly below -5 nT between 23h and 1h UT. Quiet to unsettled geomagnetic conditions (K Dourbes < 4) prevailed on September 19. K Dourbes values reached up to 4 and Kp values up to 5 during the first half of September 20. There is a chance for minor storm levels (K Dourbes = 5) on September 20 under the influence of the coronal hole high speed stream. Quiet to unsettled levels are expected on September 21 and 22, with a chance for active levels (K Dourbes = 4) on September 21 as the influence of the high speed stream wanes.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 056, basierend auf 19 Stationen.

Solarindizes für den 19 Sep 2016

Wolf-Zahl Catania	076
10cm Solarflux	083
AK Chambon La Forêt	024
AK Wingst	010
Geschätzer Ap-Wert	009
Geschätzte internationale Sonnenfleckenzahl	063 - Basierend auf 27 Stationen

Zusammenfassung auffälliger Ereignisse

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

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