Affichage des archives de dimanche, 15 octobre 2017

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2017 Oct 15 1230 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Minor storm expected (A>=30 or K=5)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
15 Oct 2017	072	031
16 Oct 2017	073	014
17 Oct 2017	074	007

Bulletin

Solar activity was at very low levels. There is no sunspots on the visible side of solar disk. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. Integral proton flux for protons with energies above 10 MeV remained at background level. Quiet flaring conditions are expected for the next 24 hours. From tomorrow solar activity is expected to increase due to the active region rotating into the filed of view. The earth environment is still under the influence of a positive polar CH that started its transit of the Central Meridian on 07 October. However, the solar wind speed decreased from about 700 km/s till 590 km/s over the past 24 hours. Total interplanetary magnetic filed (IMF) amplitude also decreased from 8 till 5 nT, while Bz was varying between 5 and -4 nT. Geomagnetic conditions were from minor storm till unsettled levels on planetary level and mainly on active levels locally in Dourbes. Mostly active geomagnetic conditions are expected for the next 24 hours with some probability of minor storming.

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

Indices solaires pour 14 Oct 2017

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	069
AK Chambon La Forêt	038
AK Wingst	029
Ap estimé	033
Nombre international de taches solaires estimé	000 - Basé sur 24 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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