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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2019 Mar 04 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
04 Mar 2019	070	007
05 Mar 2019	071	011
06 Mar 2019	070	010

Bulletin

The solar activity has been quiet over the past 24 hours. The X-ray flux remains below B-level and the visible solar disc is spotless. Solar activity is expected to remain at low levels.

No Earth directed Coronal Mass Ejection has been observed. The greater than 10 MeV solar protons flux remained at nominal levels over the past 24 hours and is expected to remain so.

Solar wind parameters are indicative of a return towards an ambient background and slow solar wind speed regime. Solar wind speed decreased from 490 km/h to 390 km/s. Total interplanetary magnetic field strength was steady and remained below 6 nT. The Bz component fluctuated between -5 nT and 3 nT, with short prolonged period of southward direction. Several small patchy equatorial coronal holes (negative polarity) are currently facing Earth. The associated speed streams are expected to dominate the space weather conditions for the following days with a wind speed ranging from nominal values (around 350 km) to 400-450 km/s.

The geomagnetic conditions were quiet to unsettle over the past 24 hours, with K-index (Dourbes) and Kp (NOAA) ranging from 1 and 3. In response to the slightly enhanced interplanetary magnetic field due to the small patchy equatorial coronal holes and possible prolonged period of southward directed Bz component, the geomagnetic conditions are expected to remain quiet to unsettle.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 16 Stationen.

Solarindizes für den 03 Mar 2019

Wolf-Zahl Catania	///
10cm Solarflux	070
AK Chambon La Forêt	012
AK Wingst	007
Geschätzer Ap-Wert	007
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 16 Stationen

Zusammenfassung auffälliger Ereignisse

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

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