Archiv von Dienstag, 16 April 2019 anzeigen

Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2019 Apr 16 1231 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
16 Apr 2019	075	007
17 Apr 2019	074	006
18 Apr 2019	074	005

Bulletin

Solar activity was at very low levels. NOAA 2738 produced a B3 flare peaking at 19:31UT. No earth-directed coronal mass ejections were observed over the last 24 hours. The greater than 10 MeV proton flux was at nominal values. A weak extension from the positive polarity northern polar coronal hole (CH) is transiting the central meridian.

Solar activity is expected to remain at very low levels.

Solar wind speed continued its gradual increase from its initial 340 km/s to reach 400 km/s by the end of the period. Bz varied between -6 and 6 nT, with a negative stretch from 15 till 20UT. The interplanetary magnetic field was mostly directed towards the Sun (negative sector). Quiet to unsettled geomagnetic conditions were observed.

Quiet to unsettled geomagnetic conditions are expected to continue.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 012, basierend auf 23 Stationen.

Solarindizes für den 15 Apr 2019

Wolf-Zahl Catania	///
10cm Solarflux	075
AK Chambon La Forêt	014
AK Wingst	///
Geschätzer Ap-Wert	009
Geschätzte internationale Sonnenfleckenzahl	013 - Basierend auf 33 Stationen

Zusammenfassung auffälliger Ereignisse

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

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