Affichage des archives de vendredi, 3 mai 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 May 03 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
03 May 2019	069	010
04 May 2019	068	005
05 May 2019	068	006

Bulletin

Solar activity is still low, but the background X-ray flux has slightly increased due to the active region that is in the course of rotation to the visible side of the Sun. During last 24 hours one weak B-class flare was reported. We expect the low level of solar flaring activity to persist in the coming hours, with B-class flares expected and C-class flares possible but not very probable. During last 24 hours no Earth directed CMEs have been observed and the solar protons remained at background level. The solar wind speed is about 440 km/s and the interplanetary magnetic field magnitude presently amounts 4 nT. Small equatorial coronal hole of negative polarity has reached central meridian this morning. The associated fast solar wind is expected to arrive at the Earth on May 6. The geomagnetic conditions are presently quiet to unsettled (local station at Dourbes and NOAA reported K=3 and Kp=2, respectively) and we expect them to stay so in the coming hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 17 stations.

Indices solaires pour 02 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 26 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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