Affichage des archives de mardi, 25 juin 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Jun 25 1233 UTC

Prévisions SIDC

Éruptions solaires

Quiet conditions (<50% probability of C-class flares)

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
25 Jun 2019	068	004
26 Jun 2019	068	011
27 Jun 2019	067	005

Bulletin

There are presently two numbered active regions (NOAA AR 2742 and 2743) observed on the visible side of the solar disc. Nevertheless the solar flaring is still very low without C-class or even B-class flares reported. We do not expect change of the solar activity in the coming hours. There were no Earth directed CMEs reported and the solar protons remained at the background level.

The Earth is still inside the slow solar wind with the speed of about 350 km/s. The interplanetary magnetic field magnitude amounts about 4 nT. The fast solar wind associated with the patchy negative polarity coronal hole, which reached central meridian on June 21, is expected to arrive to the Earth later today or tomorrow. The geomagnetic conditions are presently quiet. We expect quiet geomagnetic conditions in the coming hours, with possible isolated intervals of unsettled conditions due to expected fast solar wind arrival.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 011, sur la base de 20 stations.

Indices solaires pour 24 Jun 2019

Nombre de Wolf, observé par Catania	011
Flux solaire à 10 cm	068
AK Chambon La Forêt	008
AK Wingst	006
Ap estimé	006
Nombre international de taches solaires estimé	011 - 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

<< Aller à l'aperçu quotidien