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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2015 Sep 17 1231 UTC

Vorhersage des SIDC

Sonneneruptionen

M-class flares expected (probability >=50%)

Geomagnetismus

Minor storm expected (A>=30 or K=5)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
17 Sep 2015	114	018
18 Sep 2015	116	029
19 Sep 2015	118	018

Bulletin

NOAA 2415 developed a small delta structure just south of its middle main spot. This resulted in 12 C-class flares and 1 M-class flare. Notable events were a C9.5 flare peaking at 03:03UT, and the M1.1 flare peaking at 09:40UT. The other 3 regions were quiet. No earth-directed coronal mass ejections have been observed.

More C-class flares are expected, with a reasonable chance on another M-class flare from NOAA 2415.

Solar wind speed fluctuated mostly between 440 and 490 km/s, and is currently near 460 km/s. Bz oscillated between -6 and +5 nT, with the interplanetary magnetic field pointing away from the Sun. Quiet to unsettled conditions were observed, with active episodes around midnight.

Quiet to active geomagnetic conditions are expected. Minor geomagnetic storming is possible on 18 and/or 19 September in response to the arrival of the high speed stream of a transequatorial coronal hole.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 065, basierend auf 10 Stationen.

Solarindizes für den 16 Sep 2015

Wolf-Zahl Catania	093
10cm Solarflux	109
AK Chambon La Forêt	///
AK Wingst	016
Geschätzer Ap-Wert	014
Geschätzte internationale Sonnenfleckenzahl	078 - Basierend auf 19 Stationen

Zusammenfassung auffälliger Ereignisse

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

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