Affichage des archives de dimanche, 13 janvier 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Jan 13 1230 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Active conditions expected (A>=20 or K=4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
13 Jan 2019	071	010
14 Jan 2019	071	019
15 Jan 2019	070	007

Bulletin

The solar activity has been quiet over the past 24 hours. The X-ray flux remains below B-level, and the visible solar disc is spotless. Solar activity is expected to remain at low levels.

No Earth directed Coronal Mass Ejection has been observed. The greater than 10 MeV solar protons flux remained at nominal levels over the past 24 hours and is expected to remain so.

The solar wind parameters are at nominal values. The wind speed ranged between 390 and 320 km/s. Total interplanetary magnetic field strength was below 4 nT and the southward magnetic component ranged between -3 and 2 nT. Enhancement of the solar wind parameters is expected today due to the influence of the equatorial coronal hole that has reached the central meridian on Jan 9. A negative polarity equatorial coronal hole crossed the central meridian overnight, it might influence the solar wind conditions on Jan 16 and onward.

The geomagnetic conditions were quiet and are expected to remain quiet until the arrival of the coronal hole influences on the solar wind measurements near Earth later today. Possible isolated minor storm conditions may be observed, in particular, if the Bz component stays negative for longer periods.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 08 stations.

Indices solaires pour 12 Jan 2019

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	070
AK Chambon La Forêt	003
AK Wingst	002
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