Affichage des archives de dimanche, 12 mars 2017

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2017 Mar 12 1231 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
12 Mar 2017	070	009
13 Mar 2017	070	009
14 Mar 2017	071	015

Bulletin

Solar activity was very low. The Sun was spotless. No earth- directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10MeV proton flux was at nominal levels.

Quiet flaring conditions are expected to continue.

Solar wind speed increased slightly from 380 km/s to 420 km/s at midnight, and has been steady since. Somewhat enhanced density (10/cm3) and negative Bz (up to -6 nT) were observed around midnight. Bz fluctuated between -6 nT and +2 nT, being mostly negative. The interplanetary magnetic field was mostly directed towards the Sun, with a brief positive interval (away) during the 21-24UT interval.

The geomagnetic field was at quiet to active levels (NOAA Kp). Mostly quiet to unsettled conditions are expected, until the arrival of the particle stream from the northern polar coronal hole extension expected for 13-14 March, which may result in active episodes.

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

Indices solaires pour 11 Mar 2017

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	070
AK Chambon La Forêt	017
AK Wingst	009
Ap estimé	009
Nombre international de taches solaires estimé	000 - Basé sur 33 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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