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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2017 Jun 30 1230 UTC

Vorhersage des SIDC

Sonneneruptionen

Quiet conditions (<50% probability of C-class flares)

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
30 Jun 2017	072	003
01 Jul 2017	071	005
02 Jul 2017	071	008

Bulletin

Solar activity was at very low levels during the period. NOAA 2664 decayed further and was quiet. No earth-directed CMEs were observed in available coronagraphic imagery. The greater than 10MeV proton flux was at nominal levels.

Quiet flaring conditions are expected.

Solar wind speed gradually declined from 430 km/s to 340 km/s. Bz was relatively stable between -2 and +2 nT. The interplanetary magnetic field was mostly directed away from the Sun. The first of two small negative equatorial coronal holes (CH) is about to start transiting the central meridian.

The geomagnetic field was at quiet to unsettled levels, and is expected to remain so. A glancing blow from the 28 June CME is possible late on 2 or on 3 July, likely followed by the particle stream from the small negative CH. This may result in active geomagnetic conditions, with a chance on a minor storming episode.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 011, basierend auf 23 Stationen.

Solarindizes für den 29 Jun 2017

Wolf-Zahl Catania	014
10cm Solarflux	072
AK Chambon La Forêt	009
AK Wingst	006
Geschätzer Ap-Wert	005
Geschätzte internationale Sonnenfleckenzahl	013 - Basierend auf 21 Stationen

Zusammenfassung auffälliger Ereignisse

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

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