Archiv von Sonntag, 27 Dezember 2015 anzeigen

Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2015 Dec 27 1230 UTC

Vorhersage des SIDC

Sonneneruptionen

C-class flares expected, (probability >=50%)

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
27 Dec 2015	113	015
28 Dec 2015	110	017
29 Dec 2015	115	013

Bulletin

Solar flaring activity was low with the strongest flare a C4.1 flare peaking at 15:26 UT from NOAA AR 2473 (beta-gamma-delta, Catania nr 5). NOAA AR 2473 remains the most complex of the two regions on disk. It showed some further consolidation in the leading an intermediate spots. Flaring is expected at C level with also M level flaring quite possible. No Earth directed CME's have been detected. Solar wind speed continued to climb over the first half of the period reaching a short lived peak of around 640 km/s at 20:24 UT. The increase was associated with a rise in total interplanetary magnetic field to around 7-8 nT and a sustained period of negative Bz around -6nT before midnight. Solar wind speed meanwhile recovered to an intermediate value of around 530 km/s and also magnetic field recovered to 5-6 nT. A corresponding isolated period of minor geomagnetic storm levels was reported around midnight (both NOAA Kp and local K Dourbes 5 for the 21-24 UT period) with otherwise quiet to active conditions (local K Dourbes 2-4, NOAA Kp 2-3). Slightly enhanced solar wind conditions are expected to persist with essentially quiet to unsettled geomagnetic conditions although some periods of active geomagnetic conditions can not be excluded. The influence of a positive polarity coronal hole high speed stream may further enhance solar wind and geomagnetic conditions from late December 28 onwards.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 063, basierend auf 15 Stationen.

Solarindizes für den 26 Dec 2015

Wolf-Zahl Catania	///
10cm Solarflux	117
AK Chambon La Forêt	///
AK Wingst	019
Geschätzer Ap-Wert	015
Geschätzte internationale Sonnenfleckenzahl	056 - Basierend auf 23 Stationen

Zusammenfassung auffälliger Ereignisse

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

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