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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2016 Jul 22 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
22 Jul 2016	098	013
23 Jul 2016	098	021
24 Jul 2016	095	006

Bulletin

NOAA 2567 produced all 7 C-class flares observed during the period, the strongest being a C9.1 peaking at 12:55UT. NOAA 2567 has decreased somewhat in sunspot area and magnetic complexity. NOAA 2565 was quiet. No earth-directed coronal mass ejections (CMEs) were observed. A substantial CME first seen by LASCO/C2 at 02:48UT was related to a backside event.

C-class flaring is expected, with a chance on an M-class flare.

Solar wind speed decreased from 430 to 380 km/s. Bz gradually turned negative, from an initial +8 nT to -5 nT at the end of the reporting period. The interplanetary magnetic field was directed towards the Sun (negative). A positive coronal hole (CH; latitude +20 degrees) will start its central meridian transit later today. Quiet to unsettled geomagnetic conditions were observed.

Mostly quiet to unsettled geomagnetic conditions are expected. Active episodes are possible in response to the high speed stream of the negative northern coronal hole, and from a possible glancing blow of the 21 July CME later today or on 23 July. A minor storming episode is not excluded.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 043, basierend auf 25 Stationen.

Solarindizes für den 21 Jul 2016

Wolf-Zahl Catania	071
10cm Solarflux	100
AK Chambon La Forêt	011
AK Wingst	008
Geschätzer Ap-Wert	007
Geschätzte internationale Sonnenfleckenzahl	055 - Basierend auf 29 Stationen

Zusammenfassung auffälliger Ereignisse

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

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