Archiv von Donnerstag, 5 Oktober 2017 anzeigen

Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2017 Oct 05 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
05 Oct 2017	086	009
06 Oct 2017	086	015
07 Oct 2017	084	010

Bulletin

Solar activity was at very low levels. The two visible sunspot groups, NOAA 2683 (Catania 57) and NOAA 2682 (Catania 56), produced 2 low- level B-class flares each. NOAA 2683 displayed a moderate size increase of some small opposite polarity sunspots south of the main spot, whereas NOAA 2682 still features a long filament to the east and north of the main spot. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels.

Quiet flaring conditions are expected, with a small chance on a C-class flare.

Solar wind speed varied between 360 and 380 km/s before 23UT, and between 380 and 410 km/s for the rest of the period (DSCOVR). Bz fluctuated between -6 and +7 nT, being predominantly positive after midnight. The interplanetary magnetic field was mostly directed towards the Sun.

The geomagnetic field was at quiet to unsettled levels, and is expected to remain so. The particle stream associated with a small negative equatorial coronal hole is still expected to arrive at Earth, late on 05 or on 06 October. This may increase the likelihood on an active geomagnetic episode.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 029, basierend auf 14 Stationen.

Solarindizes für den 04 Oct 2017

Wolf-Zahl Catania	///
10cm Solarflux	087
AK Chambon La Forêt	010
AK Wingst	007
Geschätzer Ap-Wert	006
Geschätzte internationale Sonnenfleckenzahl	028 - Basierend auf 21 Stationen

Zusammenfassung auffälliger Ereignisse

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

Alle Zeiten in UTC

<< Zum Tagesübersicht