Affichage des archives de vendredi, 13 septembre 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Sep 13 1230 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 Sep 2019	069	008
14 Sep 2019	069	005
15 Sep 2019	070	004

Bulletin

There are no active regions visible on the disk. Solar activity has been very low over the past 24 hours, no significant flares have been recorded. No Earth directed CMEs have been observed in past 24 hours. The greater than 10MeV proton flux remained at background levels over the past 24 hours.

Solar activity is expected to remain low.

The solar wind speed oscillated around 420 km/s for the first part of the period and then from 20:00 UT Sept 12 it showed a gradual increase reaching a maximum of approximately 530 km/s. The interplanetary magnetic field was predominantly directed away from the Sun (positive sector) and gradually increased in magnitude over the period, with values recorded between 1 and 10 nT. The Bz fluctuated between -7 and +8 nT. Geomagnetic conditions have been quiet to unsettled over the past 24 hours, with the Kp index (NOAA) and the local k index (Dourbes) recording values between 1 and 3.

Quiet conditions are expected to continue over the next 48 hours, with isolated unsettled intervals possible.

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

Indices solaires pour 12 Sep 2019

Nombre de Wolf, observé par Catania	000
Flux solaire à 10 cm	069
AK Chambon La Forêt	011
AK Wingst	006
Ap estimé	006
Nombre international de taches solaires estimé	000 - Basé sur 35 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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