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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2017 Mar 11 1231 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
11 Mar 2017	071	005
12 Mar 2017	071	005
13 Mar 2017	071	005

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 declined from its initial 480 km/s to nominal levels near 380 km/s by 03UT. It then gradually rebounded to values near 420 km/s by 08UT, ending the period near 380 km/s. Bz fluctuated between -3 nT and +2 nT, being steady at +1 nT from 08UT onwards. The direction of the interplanetary magnetic field (phi angle) was variable. A narrow extension from the positive northern polar coronal hole (CH) has transited the central meridian (CM).

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

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 24 Stationen.

Solarindizes für den 10 Mar 2017

Wolf-Zahl Catania	000
10cm Solarflux	071
AK Chambon La Forêt	011
AK Wingst	010
Geschätzer Ap-Wert	016
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 28 Stationen

Zusammenfassung auffälliger Ereignisse

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

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