Affichage des archives de mardi, 15 janvier 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Jan 15 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
15 Jan 2019	070	007
16 Jan 2019	070	017
17 Jan 2019	070	013

Bulletin

Solar X-ray flux remained below B level throughout the period. There are no active regions on disk and X-ray flux is expected to continue to be below C level.

No earth directed CMEs have been recorded.

The proton flux levels were at background values and are expected to remain so.

Solar wind was close to nominal with Solar wind speed recovering from around 400 km/s at the start of the period to a minimum of 330 km/s, while presently around 360 km/s. Total magnetic field was in the 2-8.5 nT range with Bz variable. The magnetic field phi angle was in the negative sector. Solar wind may become somewhat enhanced again tomorrow under the possible influence of the coronal hole that passed central meridian midnight January 12/13.

Geomagnetic conditions were quiet to unsettled (local K Dourbes and NOAA Kp 1-3). Quiet to unsettled conditions are expected over the next days with a possibility for an isolated active period.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 14 stations.

Indices solaires pour 14 Jan 2019

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	070
AK Chambon La Forêt	013
AK Wingst	010
Ap estimé	007
Nombre international de taches solaires estimé	000 - Basé sur 30 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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