Affichage des archives de mardi, 27 novembre 2018

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2018 Nov 27 1344 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
27 Nov 2018	068	009
28 Nov 2018	067	008
29 Nov 2018	066	006

Bulletin

Solar activity is low, and there were no C-class flares reported today. The only sunspot group observed on the visible side of the solar disc during last several days, NOAA AR 2728 (not numbered by Catania) has almost completely decayed. We do not expect C-class flares or larger in the following days. No Earth directed CMEs were observed during last 24 hours, and the solar protons remained at the background level.

The solar wind speed increased somewhat today and it presently amounts about 370 km/s. The interplanetary magnetic field magnitude is about 6 nT. Large equatorial coronal hole has reached central meridian this morning, and the associated fast solar wind is expected to arrive to the Earth on November 30 or early on December 01. The geomagnetic conditions are presently quiet, and we can expect quiet to unsettled geomagnetic conditions in the coming hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 14 stations.

Indices solaires pour 26 Nov 2018

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	069
AK Chambon La Forêt	005
AK Wingst	001
Ap estimé	001
Nombre international de taches solaires estimé	000 - Basé sur 08 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