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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2019 Feb 03 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
03 Feb 2019	071	016
04 Feb 2019	072	010
05 Feb 2019	074	007

Bulletin

No flares in past 24 h. The region that rotated into view from the east limb has no sunspots, the Sun is spotless. Solar activity has been very low and is expected to remain so,

No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar protons have remained at background levels over the past 24 hours.

The solar wind speed is at 580 km/s with interplanetary magnetic fields of 3 nT. Geomagnetic conditions reached active values in the past 24 hours both locally at Dourbes (k = 4, from 16:00 UT to 18:00 UT, and from 22:00 UT to 00:00 UT) and at planetary levels (Kp = 4, from 15:00 UT to 18:00 UT and from 00:00 UT until 03:00 UT). The Earth is still inside the high speed stream from a negative polarity coronal hole. Mostly unsettled conditions expected, active periods remain likely to happen as the solar wind speed is still elevated (due to the extended and patchy shape of the coronal hole).

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 000, basierend auf 19 Stationen.

Solarindizes für den 02 Feb 2019

Wolf-Zahl Catania	///
10cm Solarflux	071
AK Chambon La Forêt	023
AK Wingst	///
Geschätzer Ap-Wert	019
Geschätzte internationale Sonnenfleckenzahl	000 - Basierend auf 15 Stationen

Zusammenfassung auffälliger Ereignisse

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

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