Affichage des archives de vendredi, 19 juin 2026

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2026 Jun 19 1231 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
19 Jun 2026	111	013
20 Jun 2026	111	007
21 Jun 2026	111	007

Régions solaires actives et éruptions solaires

A total of 3 numbered sunspot groups were identified on the disk over the past 24 hours. Solar activity is low, with only minor C-class flaring happening. The largest flare was a C1.2 flare on 18 June 22:04 UTC, from an active region rotating into view over the east limb. Low activity with C-class flaring is expected for the next 24 hours.

Éjection de masse coronale

No Earth-directed CMEs were observed in the last 24 hours.

Trous coronaux

SIDC coronal hole 169 (equatorial coronal hole, positive polarity) is on the western hemisphere.

Vent solaire

The Earth is inside slow solar wind, the solar wind speed decreased to 360 km/s and the interplanetary magnetic field is around 8 nT. Today, we may see the arrival of a mild high speed stream, from SIDC Coronal Hole 169.

Géomagnétisme

Geomagnetic conditions were quiet to unsettled both at planetary and local levels (Kp and K_Bel up to 3). The possible arrival of a mild high speed stream may increase geomagnetic levels.

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 : 064, sur la base de 22 stations.

Indices solaires pour 18 Jun 2026

Nombre de Wolf, observé par Catania	051
Flux solaire à 10 cm	111
AK Chambon La Forêt	014
AK Wingst	010
Ap estimé	007
Nombre international de taches solaires estimé	057 - Basé sur 29 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

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