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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2015 Jun 30 1256 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 Jun 2015	091	008
01 Jul 2015	090	013
02 Jul 2015	091	007

Bulletin

Solar activity was relatively quiet, with only NOAA Active Region (AR) 2373 producing two C class flares in the last 24 hours, A C2.3 flare peaking at 14:55 UT and a C2.4 flare peaking at 18:07 UT. Other recurrent active regions are rotating into view now and may increase solar activity in the coming days. Proton levels are still declining and are now below 1 pfu. The solar wind speed has remained roughly constant over the past 24 hours, and has varied between 360 km/s to 440 km/s. The total magnetic field has been slowly decreasing from 6 nT to 3 nT, and the Bz component has fluctuated from positive to negative between +6 and -5 nT, but remained around 0 nT for the past several hours. Geomagnetic conditions ranged between Kp index 1-2 (NOAA) and local K index 1-3 over the past 24 hours. There were no significant CMEs over the past 24 hours. A small CME emerged from the East solar limb, possibly from AR 2375. The CME had a recorded velocity of 625 km/s but is not expected to be geoeffective.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 032, basierend auf 24 Stationen.

Solarindizes für den 29 Jun 2015

Wolf-Zahl Catania	049
10cm Solarflux	097
AK Chambon La Forêt	010
AK Wingst	006
Geschätzer Ap-Wert	006
Geschätzte internationale Sonnenfleckenzahl	032 - Basierend auf 34 Stationen

Zusammenfassung auffälliger Ereignisse

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

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