Affichage des archives de jeudi, 2 mai 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 May 02 1234 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
02 May 2019	068	011
03 May 2019	068	008
04 May 2019	068	005

Bulletin

During last 24 hours there were no C-class or even B-class flares reported. Since the Sun is still spotless, we do not expect the change in the level of the flaring activity in the coming hours. There were no Earth directed CMEs reported during last 24 hours and the solar protons remained at the background level.

The Earth is presently inside the fast solar wind associated with the equatorial coronal hole which reached central meridian on April 28. The solar wind speed is about 530 km/s and the interplanetary magnetic field magnitude presently amounts 4 nT. The in situ observations indicated arrival of this fast flow starting from the evening of May 01. The maximum of the solar wind speed, of 580 km/s, was reported at about 09 UT today. The arrival of the fast solar wind induced longer interval of active geomagnetic conditions (local station at Dourbes and NOAA reported K=4 and Kp=4, respectively) at around midnight of May 01. We expect quiet to unsettled geomagnetic conditions in the coming hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 18 stations.

Indices solaires pour 01 May 2019

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	///
AK Chambon La Forêt	///
AK Wingst	///
Ap estimé	///
Nombre international de taches solaires estimé	000 - Basé sur 22 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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