Affichage des archives de dimanche, 19 mai 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 May 19 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
19 May 2019	070	007
20 May 2019	069	007
21 May 2019	069	019

Bulletin

The Sun produced no flares in the past 24 hours. The chance for a C flare in the next 24 hours is estimated at 5%.

No Earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.

The solar wind speed as registered by DSCOVR decreased from about 420 to 375 km/s in the past 24 hours. The Interplanetary Magnetic Field was predominantly oriented away from the Sun and its magnitude varied between about 3 and 6 nT. Bz was never below -5 nT. Nominal solar wind conditions are expected on May 19 and 20.

Quiet to unsettled geomagnetic conditions (K Dourbes between 0 and 3; NOAA Kp between 0 and 1) were registered in the past 24 hours. Quiet to unsettled geomagnetic levels (K Dourbes < 4) are expected on May 19 and 20. Active intervals (K Dourbes = 4) are possible on May 21, due to the expected arrival of a weak solar wind stream associated with a recurring, negative polarity equatorial coronal hole.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 09 stations.

Indices solaires pour 18 May 2019

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	071
AK Chambon La Forêt	008
AK Wingst	004
Ap estimé	005
Nombre international de taches solaires estimé	013 - Basé sur 21 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