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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2017 Jul 13 1230 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Active conditions expected (A>=20 or K=4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
13 Jul 2017	089	003
14 Jul 2017	088	013
15 Jul 2017	087	008

Bulletin

Solar activity was at very low levels, no flares, no Coronal Mass Ejections (CMEs) were observed during the past 24 hours. NOAA 2665 decayed further and was quiet. New NOAA AR 2666 was numbered today but remained inactive. Solar protons have remained at background levels over the past 24 hours. One negative polarity southern coronal hole (small in size) will move into the geoeffective position from tomorrow (14-July-2017). Flaring activity is expected to be on B-level, C flares are also not excluded. Solar wind speed gradually declined from 515 km/s till 395 km/s. Bz was relatively stable between -3 and +3 nT. The interplanetary magnetic field was below 4 nT. The geomagnetic field was at quiet levels (planetary index KP NOAA from 0 to 1; local index K Dourbes from 1 to 3). Geomagnetic conditions are expected to remain quiet at least till midnight today (13-July-2017). From tomorrow active geomagnetic conditions are possible due to the mentioned above negative coronal hole possible geoeffectivness.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 062, basierend auf 24 Stationen.

Solarindizes für den 12 Jul 2017

Wolf-Zahl Catania	072
10cm Solarflux	090
AK Chambon La Forêt	007
AK Wingst	004
Geschätzer Ap-Wert	003
Geschätzte internationale Sonnenfleckenzahl	063 - Basierend auf 31 Stationen

Zusammenfassung auffälliger Ereignisse

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

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