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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2016 Feb 05 1230 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
05 Feb 2016	135	007
06 Feb 2016	140	006
07 Feb 2016	140	007

Bulletin

Solar activity was low during the past reporting period, though the amount of C-class flares is increasing. NOAA active region (AR) 2494 was responsible for most of the flares, including a C5.1 flare, peaking at 18h22 UT. NOAA AR 2494 has rapidly grown into a complex group. Some flux emergence and cancellation was occurring at NOAA 2493. NOAA AR 2491 has strongly decayed, while the spots in the trailing region of NOAA 2490 vanished almost completely. More flares at the C-level are expected, with an increasing chance for an M-class flare. No Earth-directed coronal mass ejections (CME) were observed.

The solar wind speed slightly increased to 500 km/s. The magnitude of the magnetic field was maximally 11 nT, but decreased to a current value of 5 nT. The north-south component was fluctuating between -7 and +10 nT.

Geomagnetic conditions were quiet (K=1-2) to unsettled (K=3), both at the local (Dourbes) and global level (NOAA estimate), which is expected to continue.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 109, basierend auf 10 Stationen.

Solarindizes für den 04 Feb 2016

Wolf-Zahl Catania	///
10cm Solarflux	123
AK Chambon La Forêt	012
AK Wingst	005
Geschätzer Ap-Wert	005
Geschätzte internationale Sonnenfleckenzahl	116 - Basierend auf 19 Stationen

Zusammenfassung auffälliger Ereignisse

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

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