Archiv von Montag, 10 April 2017 anzeigen

Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2017 Apr 10 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
10 Apr 2017	073	006
11 Apr 2017	072	011
12 Apr 2017	071	007

Bulletin

Solar activity was at very low levels during the period. Low-level B-class flaring was observed from NOAA 2648 (B1.8) and from a new active region at the east limb NOAA 2650 (B2.7, B1.1, B1.3). 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, with a chance on an isolated C-class flare.

Solar wind speed declined from about 470 km/s to values around 420 km/s. Bz fluctuated between -3.5 and +7 nT, being positive after 16UT. The interplanetary magnetic field was initially directed away from the Sun, but changed to a mostly toward the Sun direction after 02UT.

Solar wind parameters are expected to decline further today. A weak connection to an isolated, positive polarity coronal hole is expected to enhance the solar wind environment from tomorrow.

The geomagnetic field was at active to quiet levels (Kp NOAA index: 3-1). Local geomagnetic data were missing for the period. Geomagnetic conditions are expected to be quiet to unsettled.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 014, basierend auf 21 Stationen.

Solarindizes für den 09 Apr 2017

Wolf-Zahl Catania	///
10cm Solarflux	074
AK Chambon La Forêt	015
AK Wingst	014
Geschätzer Ap-Wert	015
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 21 Stationen

Zusammenfassung auffälliger Ereignisse

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

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