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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2019 Jul 05 1230 UTC

Vorhersage des SIDC

Sonneneruptionen

Quiet conditions (<50% probability of C-class flares)

Geomagnetismus

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

Sonnenprotonen

Quiet

	10cm Fluss	Ap
05 Jul 2019	068	020
06 Jul 2019	068	014
07 Jul 2019	068	007

Bulletin

The visible side of the Sun is spotless and did not produce any flares in the past 24 hours. The chance for a C flare in the next 24 hours is estimated at only 1%.

No Earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.

Solar wind speed near Earth as registered by ACE varied between about 320 and 370 km/s until the arrival around 22:25 UT on July 4 of a high speed stream from a small, recurrent, negative polarity equatorial coronal hole that crossed the central meridian on July 1, which caused the solar wind speed to gradually rise from about 345 to 455 km/s, with current values around 420 km/s. The Interplanetary Magnetic Field (IMF) changed direction and is now pointed towards from the Sun. Its magnitude varied between about 1 and 8 nT in the past 24 hours. Bz was never below -5 nT for extended intervals of time. Solar wind conditions are expected to stay enhanced on July 5 and 6.

Quiet geomagnetic conditions (K Dourbes equal to 2; NOAA Kp between 1 and 2) were registered in the past 24 hours. Active intervals (K Dourbes = 4) are possible on July 5 and 6, with a chance for minor geomagnetic storm intervals (K Dourbes = 5). Quiet to unsettled geomagnetic levels (K Dourbes < 4) are expected on July 7.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 21 Stationen.

Solarindizes für den 04 Jul 2019

Wolf-Zahl Catania	///
10cm Solarflux	068
AK Chambon La Forêt	///
AK Wingst	007
Geschätzer Ap-Wert	006
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 33 Stationen

Zusammenfassung auffälliger Ereignisse

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

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