Archiv von Samstag, 4 Juli 2015 anzeigen

Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2015 Jul 04 1230 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
04 Jul 2015	112	004
05 Jul 2015	111	003
06 Jul 2015	111	003

Bulletin

Active Region (AR) 2378 produced two C-class flares and one M-class flare over the past 24 hours. All other ARs have been relatively quiet. AR 2378 has produced the largest flare, a M1.5 class flare, peaking at 12:51 UT on 2015-Jul-03. There is little evidence of a CME associated with the flare. There are some flows / small eruptions emerging from beyond the north-east solar limb, and when the source region rotates into view we may see an increase in activity. The proton numbers have continued to be low and have not exceeded ~1 pfu at the Earth in the past 24 hours. Solar activity may fluctuate in the coming days with AR 2378 appearing quite active.

The solar wind speed has been steadily rising over the past 24 hours, from approx. 320 to 350 km / s. The density has also been slowly rising. The total magnetic field has been slowly increasing from approx. 4 nT to 8 nT, and the Bz component has been around 0 nT with some fluctuations in the past 24 hours, and has dropped as low as -8 nT. A drop in the field and small increases in velocity may cause a small increase in geomagnetic field activity. Geomagnetic conditions ranged between Kp index 0-2 (NOAA) and local K index (Dourbes) 0-3 over the past 24 hours, similar conditions are expected to persist. There is one transient coronal hole currently located in the South, which may enhance solar wind speeds at the Earth in a couple of days.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 107, basierend auf 21 Stationen.

Solarindizes für den 03 Jul 2015

Wolf-Zahl Catania	///
10cm Solarflux	112
AK Chambon La Forêt	006
AK Wingst	///
Geschätzer Ap-Wert	004
Geschätzte internationale Sonnenfleckenzahl	093 - Basierend auf 32 Stationen

Zusammenfassung auffälliger Ereignisse

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

Alle Zeiten in UTC

<< Zum Tagesübersicht