Affichage des archives de lundi, 16 septembre 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Sep 16 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
16 Sep 2019	068	012
17 Sep 2019	068	016
18 Sep 2019	067	016

Bulletin

Solar X-ray flux was below B level. Wit no active regions on disk X-ray flux is expected to remain at background levels.

No Earth directed CME's have been observed in coronagraph data. A filament located near N30E05 is seen erupting in SDO/AIA 304 images after 6:00UT. We await further coronagraph data to assess the possibility of an Earth-directed CME.

Proton levels were at background values and are expected to remain so.

Solar wind fluctuated around 450 km/s with magnetic field below 7nT. A period of persistent negative Bz was seen before and around midnight. The magnetic field phi angle has gradually shifted into the negative sector over this period. Solar wind conditions are expected to remain near nominal with possibly some enhancements starting in the afternoon of September 17 due to a coronal hole on the southern hemisphere.

Geomagnetic conditions have seen some active periods (NOAA Kp=4) after midnight. Geomagnetic conditions are expected to be quiet to unsettled over the next days with a possibility of isolated periods of active conditions.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 15 stations.

Indices solaires pour 15 Sep 2019

Nombre de Wolf, observé par Catania	000
Flux solaire à 10 cm	068
AK Chambon La Forêt	022
AK Wingst	012
Ap estimé	011
Nombre international de taches solaires estimé	000 - Basé sur 28 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

<< Aller à l'aperçu quotidien