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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2015 May 21 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
21 May 2015	103	005
22 May 2015	101	007
23 May 2015	099	007

Bulletin

Solar activity was low. A single C flare was reported from NOAA region 2349 (now plage). The C1.2 flare peaked at 7:06UT. All current regions on disk have fairly simple configuration. Quiet conditions are expected with an occasional C flare possible. Yesterdays C1.6 flare did not seem to have any significant CME associated. No Earth directed CME's have been detected in the available coronagraph images. Solar wind conditions reflected the decline of the high speed stream influence with current conditions near nominal. Solar wind speed dropped from around 480 km/s to around 400 km/s. Total magnetic field was below 7nT and currently around 5.5 nT. Bz was mostly negative but remaining above -3.5 nT. Geomagnetic conditions were quiet (NOAA Kp 0-2, while the local Dourbes station currently out of service). Nominal solar wind conditions and associated quiet geomagnetic conditions are expected.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 036, basierend auf 17 Stationen.

Solarindizes für den 20 May 2015

Wolf-Zahl Catania	///
10cm Solarflux	106
AK Chambon La Forêt	007
AK Wingst	009
Geschätzer Ap-Wert	009
Geschätzte internationale Sonnenfleckenzahl	041 - Basierend auf 25 Stationen

Zusammenfassung auffälliger Ereignisse

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

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