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Tägliches Bulletin zur solaren und geomagnetischen Aktivität des SIDC

Ausgestellt: 2026 Jun 21 1231 UTC

Vorhersage des SIDC

Sonneneruptionen

M-class flares expected (probability >=50%)

Geomagnetismus

Quiet (A<20 and K<4)

Sonnenprotonen

Quiet

	10cm Fluss	Ap
21 Jun 2026	113	007
22 Jun 2026	115	007
23 Jun 2026	117	007

Solaraktive Regionen und Flares

A total of 5 numbered sunspot groups were identified on the disk over the past 24 hours. We observed two M-class flares in the last 24 hours, both originating from SIDC Sunspot Group 885 (NOAA Active Region 4473), currently located at S09E68 with a Beta magnetic configuration. This sunspot group belongs to a complex group of recurring regions which are increasing solar activity as they rotate into view. The largest flare was a M2.6 flare (SIDC Flare 7982) peaking on June 21 at 02:46 UTC, which was produced by SIDC Sunspot Group 885 (NOAA Active Regions 4457, 4473). Solar flaring activity is expected to be moderate over the next 24 hours, with M-class flares likely and a small chance for X-class flares.

Koronaler Massenauswurf

The M2.6 flare (SIDC Flare 7982) from SIDC Sunspot group 885 (NOAA AR 4473) was associated with a faint west-directed, wide CME. Since this region is very close to the west limb, an Earth arrival of this CME is not expected.

Sonnenwind

The Earth is currently inside a slow solar wind regime, with solar wind speed around 370 km/s and an interplanetary magnetic field of 6nT. Similar conditions can be expected for the next 24 hours.

Geomagnetismus

Geomagnetic conditions were quiet at planetary and unsettled at local levels (Kp up to 2, K_Dourbes up to 3). Similar quiet to unsettled conditions can be expected for the next 24 hours.

Protonenflusswerte

The greater than 10 MeV proton flux, as measured by GOES-18, was below the 10 pfu threshold level over the past 24 hours and is expected to remain so for the next 24 hours.

Elektronenflüsse im geostationären Orbit

The greater than 2 MeV electron flux, as measured by GOES-18 and GOES-19 was below the 1000 pfu alert threshold in the past 24 hours. The flux is expected to remain low over the next 24 hours. The 24-hour electron fluence was at normal levels over the past 24 hours and is expected to remain at these levels over the next 24 hours.

Die heute international geschätzte Sonnenfleckenanzahl (ISN): 070, basierend auf 25 Stationen.

Solarindizes für den 20 Jun 2026

Wolf-Zahl Catania	///
10cm Solarflux	113
AK Chambon La Forêt	012
AK Wingst	011
Geschätzer Ap-Wert	010
Geschätzte internationale Sonnenfleckenzahl	091 - Basierend auf 23 Stationen

Zusammenfassung auffälliger Ereignisse

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

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