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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2016 Sep 15 1231 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
15 Sep 2016	085	011
16 Sep 2016	084	011
17 Sep 2016	083	007

Bulletin

Solar activity is low with no flares reported during last 24 hours. All two active region, presently observed on the visible side of the solar disk have simple configuration of their photospheric magnetic field (alpha configuration). A fast CME with angular width of about 100 degrees erupted off the east solar limb at 23:36 UT on September 14 (as detected by CACTUS). STEREO-A data demonstrate that the event is initiated by the filament eruption at the backside of the Sun and will not affect the Earth. Solar protons have remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with a small probability of C-class flares. Solar wind speed continued its gradual decline from about 350 km/s to its current value around 320 km/s. The magnitude of the Interplanetary Magnetic Field (Bt) has increased from 8 nT to 10 nT and remained stable, while Bz has been negative during last 24 hours, ranging between -5 nT and -8 nT. Mostly quiet to unsettled geomagnetic conditions were reported, with an isolated minor storming episode during the 21-23 UT interval reported by Dourbes. Geomagnetic conditions have been mostly quiet (K Dourbes between 1 and 4; NOAA Kp between 2 and 3). Active to minor geomagnetic storm conditions (K Dourbes = 3-4) are possible from today (15-Sep-2016) due to the increased values of the solar wind parameters.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 023, basierend auf 13 Stationen.

Solarindizes für den 14 Sep 2016

Wolf-Zahl Catania	034
10cm Solarflux	085
AK Chambon La Forêt	021
AK Wingst	012
Geschätzer Ap-Wert	010
Geschätzte internationale Sonnenfleckenzahl	029 - Basierend auf 26 Stationen

Zusammenfassung auffälliger Ereignisse

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

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