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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2015 Jul 05 1230 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Minor storm expected (A>=30 or K=5)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
05 Jul 2015	118	038
06 Jul 2015	119	022
07 Jul 2015	118	013

Bulletin

Solar activity has remained quiet over the past 24 hours with no significant flares. AR 2381 has produced the largest flare, a B7.4 class flare, peaking at 09:15 UT on 2015-Jul-05. There are some flows / small eruptions emerging from beyond the north-east solar limb, and when the source region rotates into view we may see an increase in activity. The proton numbers have continued to be low and have not exceeded 1 pfu at the Earth in the past 24 hours. The solar wind speed increased from approx. 320 km / s to 500 km / s over the past 24 hours, peaking at approx. 600 km / s at 20:00 UT on 2015-Jul-04. The total magnetic field has fluctuated and reached approx. 20 nT at 18:00 UT on 2015-Jul-04 and has subsequently declined to around 10 nT. The Bz reached approx. -20 nT at 20:00 UT. These solar wind conditions caused an ongoing geomagnetic storm, Kp (NOAA) reached 6 in the period from 18:00 to 6:00 UT and has subsequently dropped to 5, the local K (Dourbes) is currently at 4. Enhanced geomagnetic storm conditions are expected to continue for a couple of days due to the presence of a coronal hole in the south west generating a high speed stream.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 120, basierend auf 19 Stationen.

Solarindizes für den 04 Jul 2015

Wolf-Zahl Catania	///
10cm Solarflux	117
AK Chambon La Forêt	037
AK Wingst	///
Geschätzer Ap-Wert	019
Geschätzte internationale Sonnenfleckenzahl	105 - Basierend auf 27 Stationen

Zusammenfassung auffälliger Ereignisse

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

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