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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2016 Feb 04 1235 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
04 Feb 2016	120	005
05 Feb 2016	125	006
06 Feb 2016	130	006

Bulletin

Solar flaring activity has slightly increased, with seven lower C-class flares (strongest C1.8) during the past 24 hours. The NOAA active regions (AR) 2490 (Catania 16), 2492, 2493 and a region currently rounding the East limb were responsible for this activity. Two new (yet unnumbered) regions are developing quite rapidly, near S10E15 and S08W20. A filament eruption was observed SouthEast of the disk center from 8h UT on February 3. The associated CME only left near 16h UT (first observation LASCO/C2) and was very narrow. A rather faint and slow CME (245km/s estimated by CACTus) lifted off at 9h36 UT on February 3 (first measurement at LASCO/C2), propagating to the SouthWest. The source of this CME is currently unclear, but will be analyzed further. More flaring at the C-level is expected, with a slight chance for an M-class flare. The solar wind speed ranged between 350 and 450 km/s, showing a slight increase. The magnitude of the magnetic field was around 10 nT, with a mainly positive Bz component.

Geomagnetic conditions were mainly quiet (K=0-2), both at the local (Dourbes) and global level (NOAA estimate). This situation is expected to continue, with a slight chance for time slots of unsettled to active conditions.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 115, basierend auf 10 Stationen.

Solarindizes für den 03 Feb 2016

Wolf-Zahl Catania	///
10cm Solarflux	112
AK Chambon La Forêt	007
AK Wingst	010
Geschätzer Ap-Wert	012
Geschätzte internationale Sonnenfleckenzahl	088 - Basierend auf 21 Stationen

Zusammenfassung auffälliger Ereignisse

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

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