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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2017 Jul 11 1239 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
11 Jul 2017	095	012
12 Jul 2017	095	011
13 Jul 2017	093	008

Bulletin

NOAA AR 2665 (the only visible AR on the disk) produced multiple B class flares. This region continues to grow, C-class flares can be expected (and less likely M-flares). No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar protons have remained at background levels over the past 24 hours. Solar wind parameters reflected the continued influence of a high speed stream coming from the positive polarity coronal hole. Solar wind speed steadily increased from about 550 km/s to 670 km/s ( at 07:30 UT), later solar wind speed slightly decreased till 630 km/s. Total magnetic field abruptly decreased from about 8 to 4 nT today (04:30 UT), simultaneously variations of Bz component decreased from +7/+4 nT till +/-2 nT. Geomagnetic conditions ranged between Kp index 1-3 (NOAA) and local K index 1-4 (Dourbes) over the past 24 hours. Geomagnetic conditions are expected to be quiet to unsettled for the next few days.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 041, basierend auf 17 Stationen.

Solarindizes für den 10 Jul 2017

Wolf-Zahl Catania	034
10cm Solarflux	095
AK Chambon La Forêt	012
AK Wingst	008
Geschätzer Ap-Wert	009
Geschätzte internationale Sonnenfleckenzahl	045 - Basierend auf 37 Stationen

Zusammenfassung auffälliger Ereignisse

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

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