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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2013 Jul 13 1209 UTC

Vorhersage des SIDC

Sonneneruptionen

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

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
13 Jul 2013	115	017
14 Jul 2013	110	007
15 Jul 2013	100	007

Bulletin

Solar activity was low during the past 24 hours, with only C class flares reported. The strongest event, a C3.5 flare, took place in NOAA AR 1785 on July 12, 1733 UT (peak time). It was accompanied by a very faint CME observed by LASCO C2. Due to the position of the source region, and with the information currently available, this event does not seem to be geoffective. C flares are possible in the next 48 hours, in particular from NOAA AR 1785, 1787 and 1791, and we therefore foresee eruptive conditions. We expect mostly quiet to unsettled conditions for the next 48 hours in terms of geomagnetic activity. ACE observations show that the Earth is currently within a magnetic cloud, probably associated with the halo CME of July 9th. The first hint of its arrival was detected on July 12th, a bit after 1600 UT, with moderate negative excursions of the Bz component of the interplanetary magnetic field.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 021, basierend auf 08 Stationen.

Solarindizes für den 12 Jul 2013

Wolf-Zahl Catania	087
10cm Solarflux	118
AK Chambon La Forêt	019
AK Wingst	011
Geschätzer Ap-Wert	010
Geschätzte internationale Sonnenfleckenzahl	048 - Basierend auf 19 Stationen

Zusammenfassung auffälliger Ereignisse

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

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