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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2015 Sep 16 1230 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
16 Sep 2015	106	012
17 Sep 2015	108	015
18 Sep 2015	108	026

Bulletin

NOAA 2415, currently the most complex sunspot region on the solar disk, produced the strongest flare of the period (C3.0 flare peaking at 02:24UT). The other 4 regions were mostly quiet, with NOAA 2414 producing a single C1 flare. No earth-directed coronal mass ejections have been observed.

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

Solar wind speed gradually declined from values near 520 km/s to its current 470 km/s. Bz oscillated between -6 and +6 nT, with the interplanetary magnetic field pointing away from the Sun. Quiet to unsettled conditions were observed, with a single active episode at Dourbes (15:00UT). The trailing transequatorial extension of a wide northern coronal hole is transiting the central meridian.

Quiet to unsettled geomagnetic conditions are expected, with a chance on an active episode. Minor geomagnetic storming is expected on 18 and 19 September.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 083, basierend auf 08 Stationen.

Solarindizes für den 15 Sep 2015

Wolf-Zahl Catania	073
10cm Solarflux	101
AK Chambon La Forêt	///
AK Wingst	018
Geschätzer Ap-Wert	024
Geschätzte internationale Sonnenfleckenzahl	066 - Basierend auf 23 Stationen

Zusammenfassung auffälliger Ereignisse

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

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