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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2015 Jul 25 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
25 Jul 2015	096	014
26 Jul 2015	101	016
27 Jul 2015	107	013

Bulletin

There are currently 2 sunspot groups visible on the solar disk. NOAA 2389 shows some mixed magnetic polarities. It was the source of two C2 flares, both associated with narrow but not-earth directed coronal mass ejections. NOAA 2390 is growing, but still flare silent. No other C-class flares or earth-directed coronal mass ejections (CMEs) were observed.

There's a chance on further low-level C-class flaring.

Solar wind speed varied mostly between 400 and 450 km/s, while Bz fluctuated between -6 and +7 nT. Quiet to unsettled geomagnetic conditions were observed, with locally at Dourbes an active episode at 09:00UT. A small equatorial positive coronal hole has transited the central meridian.

Mostly quiet to unsettled geomagnetic conditions are expected, with a chance on an active period.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 033, basierend auf 10 Stationen.

Solarindizes für den 24 Jul 2015

Wolf-Zahl Catania	///
10cm Solarflux	092
AK Chambon La Forêt	016
AK Wingst	010
Geschätzer Ap-Wert	009
Geschätzte internationale Sonnenfleckenzahl	035 - Basierend auf 25 Stationen

Zusammenfassung auffälliger Ereignisse

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

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