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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2025 Mar 15 1231 UTC

Vorhersage des SIDC

Sonneneruptionen

C-class flares expected, (probability >=50%)

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
15 Mar 2025	185	018
16 Mar 2025	185	017
17 Mar 2025	185	017

Solaraktive Regionen und Flares

Solar flaring activity was moderate over the past 24 hours, with 1 M-class flare identified. The largest flare was a M1.1 flare (SIDC Flare 3844) peaking on March 14 at 22:21 UTC, which was produced by SIDC Sunspot Group 437 (NOAA Active Region 4030). A total of 10 numbered sunspot groups were identified on the disk over the past 24 hours. SIDC Sunspot Group 428 (NOAA Active Region 4019) has the most complex magnetic configuration (Beta-Delta) and was decreasing over the past 24 hours. Solar flaring activity is expected to be low over the next 24 hours, with C-class flares very likely and a chance for M-class flares.

Koronaler Massenauswurf

No new Earth-directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraph images.

Sonnenwind

Earth continued to be under the influence of high speed streams (HSS). The solar wind speed was around 560 km/s. The interplanetary magnetic field was between 8 nT and 5 nT, with the Bz reaching a minimum value of -6 nT. In the next 24 hours, we expect a gradual transition from fast to slow solar wind.

Geomagnetismus

Geomagnetic conditions were globally and locally unsettled to active (KP4) in the past 24 hours. Unsettled conditions are expected in the next 24 hours.

Protonenflusswerte

The greater than 10 MeV proton flux remained below the 10 pfu threshold and is expected to remain so over the next days.

Elektronenflüsse im geostationären Orbit

The greater than 2 MeV electron flux exceeded the 1000 pfu threshold for most of the time during the past 24 hours, and is expected to remain above the threshold during the next 24 hours. The 24h electron fluence was at normal levels and is expected to remain so.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 161, basierend auf 09 Stationen.

Solarindizes für den 14 Mar 2025

Wolf-Zahl Catania	221
10cm Solarflux	180
AK Chambon La Forêt	031
AK Wingst	022
Geschätzer Ap-Wert	025
Geschätzte internationale Sonnenfleckenzahl	173 - Basierend auf 17 Stationen

Zusammenfassung auffälliger Ereignisse

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

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