Affichage des archives de dimanche, 21 juin 2026

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2026 Jun 21 1231 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

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

Régions solaires actives et éruptions solaires

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.

Éjection de masse coronale

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.

Vent solaire

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.

Géomagnétisme

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.

Niveaux de flux de protons

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.

Flux d'électrons sur l'orbite géostationnaire

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.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 070, sur la base de 25 stations.

Indices solaires pour 20 Jun 2026

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	113
AK Chambon La Forêt	012
AK Wingst	011
Ap estimé	010
Nombre international de taches solaires estimé	091 - Basé sur 23 stations

Résumé des événements marquants

Données fournies par le Solar Influences Data analysis Center© - SIDC - Traité par SpaceWeatherLive

Toutes les heures sont indiquées en UTC

<< Aller à l'aperçu quotidien