Affichage des archives de vendredi, 7 octobre 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Oct 07 1230 UTC

Prévisions SIDC

Éruptions solaires

C-class flares expected, (probability >=50%)

Géomagnétisme

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

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
07 Oct 2016	102	011
08 Oct 2016	102	010
09 Oct 2016	101	010

Bulletin

Over the past 24 hours solar activity has been very low. No significant flares have been recorded. There are currently two Active Regions (ARs) near disk centre, and a new AR (2600) that emerged over the east limb. All appear stable in HMI magnetogram observations. There is a small northern polar coronal hole that is not expected to increase solar wind speeds at Earth. Although the Sun has been quiet there is a reasonable chance of C-class flares over the next 24 hours. The solar wind speed has fluctuated between 425 and 475 km/s over the past 24 hours. The total magnetic field strength has fluctuated between 4 nT and 7 nT. The Bz component fluctuated between -4 and +5 nT, but remained mainly positive. Geomagnetic conditions ranged between Kp index 0-3 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. There is currently a positive polarity Northern polar coronal hole which shouldn't affect the Earth. Geomagnetic conditions are expected to be quiet to unsettled.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 061, sur la base de 08 stations.

Indices solaires pour 06 Oct 2016

Nombre de Wolf, observé par Catania	088
Flux solaire à 10 cm	102
AK Chambon La Forêt	010
AK Wingst	007
Ap estimé	006
Nombre international de taches solaires estimé	059 - Basé sur 25 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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