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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2017 Mar 12 1231 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Active conditions expected (A>=20 or K=4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
12 Mar 2017	070	009
13 Mar 2017	070	009
14 Mar 2017	071	015

Bulletin

Solar activity was very low. The Sun was spotless. No earth- directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10MeV proton flux was at nominal levels.

Quiet flaring conditions are expected to continue.

Solar wind speed increased slightly from 380 km/s to 420 km/s at midnight, and has been steady since. Somewhat enhanced density (10/cm3) and negative Bz (up to -6 nT) were observed around midnight. Bz fluctuated between -6 nT and +2 nT, being mostly negative. The interplanetary magnetic field was mostly directed towards the Sun, with a brief positive interval (away) during the 21-24UT interval.

The geomagnetic field was at quiet to active levels (NOAA Kp). Mostly quiet to unsettled conditions are expected, until the arrival of the particle stream from the northern polar coronal hole extension expected for 13-14 March, which may result in active episodes.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 20 Stationen.

Solarindizes für den 11 Mar 2017

Wolf-Zahl Catania	///
10cm Solarflux	070
AK Chambon La Forêt	017
AK Wingst	009
Geschätzer Ap-Wert	009
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 33 Stationen

Zusammenfassung auffälliger Ereignisse

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

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