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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2016 Jan 30 1235 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
30 Jan 2016	105	003
31 Jan 2016	103	005
01 Feb 2016	101	008

Bulletin

Over the past 24 hours solar activity has been low. The largest flare was a C2.0 class flare peaking at 21:46 UT. NOAA Active Region (AR) 2488 (Macintosh class:Dao; Mag. type:Beta) has been most active, but has now moved on to the West limb. AR 2490 (Bxo; Beta) has also been active producing several small flares. AR 2488 has shown some evidence of flux emergence and cancellation in HMI observations, but appears stable. This may increase flaring activity. There is currently a large positive Northern polar coronal in the Western hemisphere, but solar wind speeds have remained low, there is a small chance of increased solar wind speeds over the next day. There were a series of small Coronal Mass Ejections (CMEs) off of the West limb. There were two filament eruptions that occurred close to the West limb, the first at approximately 05:30 UT and the second at 21:10 UT yesterday (29-Jan-2015). Both are not expected to interact with the Earth system. No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar activity is expected to remain low over the next 24 hours with a high probability of C-class flares and a low probability of M-class flares. The solar wind speed has decreased from around 310 to 270 km/s over the past 24 hours. The total magnetic field strength has slowly decreased from around 5 to 3 nT. The Bz component fluctuated around 0 nT, ranging between -2 and +2 nT. Geomagnetic conditions ranged between Kp index 0-1 (NOAA) and local K index 0-2 (Dourbes) over the past 24 hours. A positive polar coronal hole is currently positioned in the Western hemisphere of the Sun, but the solar wind speed has remained low. Geo-activity is expected to remain low unless the solar wind speed increases.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 033, basierend auf 03 Stationen.

Solarindizes für den 29 Jan 2016

Wolf-Zahl Catania	///
10cm Solarflux	107
AK Chambon La Forêt	006
AK Wingst	003
Geschätzer Ap-Wert	002
Geschätzte internationale Sonnenfleckenzahl	061 - Basierend auf 18 Stationen

Zusammenfassung auffälliger Ereignisse

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

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