Affichage des archives de dimanche, 13 octobre 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Oct 13 1231 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
13 Oct 2019	068	005
14 Oct 2019	068	007
15 Oct 2019	067	005

Bulletin

Solar activity was at very low levels, no significant flares have been recorded. The Sun remained spotless. No earth-directed coronal mass ejections (CMEs) have been observed in the available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal values.

Solar activity is expected to remain at very low levels.

The solar wind speed gradually decreased from 400 km/s to 340 km/s (ACE). The total magnetic field varied between 1 and 5 nT. The direction of the interplanetary magnetic field (phi angle) was predominantly directed away from the Sun (positive sector), with a prolonged interval in the negative sector from 05:00 to 09:30 UT Oct 13. Bz varied between -3 and +4 nT. Geomagnetic activity quiet, with the Kp index (NOAA) and the local k index (Dourbes) recording values of 0-2.

Quiet conditions are expected, with possible unsettled intervals due to the influence of a negative polarity coronal hole which began to traverse the central meridian on Oct 10.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 20 stations.

Indices solaires pour 12 Oct 2019

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	068
AK Chambon La Forêt	006
AK Wingst	006
Ap estimé	004
Nombre international de taches solaires estimé	000 - Basé sur 20 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