Affichage des archives de dimanche, 16 octobre 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Oct 16 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
16 Oct 2016	083	018
17 Oct 2016	082	031
18 Oct 2016	082	020

Bulletin

Solar X-ray flux remained at background levels throughout the period. The regions on disk were stable or in decay while the region responsible for the C-flares on the previous days, rotating onto the disk in the East, is spotless and remains unnumbered. There is only a slight chance for C flaring over the next 24 hours. Proton flux levels were at background values and expected to remain so. No Earth directed CMEs have been observed in coronagraph data.

Solar wind speed remained slightly enhanced after the CME passage and showed recently the expected increase due to the negative polarity coronal hole high speed stream. Solar wind speed is consequently in the range 620-700 km/s since around 7:15UT. Total magnetic field was in the 6.5-10nT range throughout the period with a variable Bz and a phi angle in the negative sector. Solar wind conditions are expected to remain enhanced over the next 48 hours due to the high speeds stream from a recurrent negative polarity coronal hole. Geomagnetic conditions were quiet to unsettled (both K Dourbes and NOAA Kp 1-3) and are expected to be quiet to active with possibly minor geomagnetic storms as the high speed stream from the negative polarity coronal hole persists.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 027, sur la base de 18 stations.

Indices solaires pour 15 Oct 2016

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	085
AK Chambon La Forêt	018
AK Wingst	012
Ap estimé	012
Nombre international de taches solaires estimé	038 - Basé sur 19 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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