Affichage des archives de dimanche, 31 mars 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Mar 31 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
31 Mar 2019	069	012
01 Apr 2019	069	013
02 Apr 2019	068	007

Bulletin

Solar flaring activity remains very low, without any flares reported during last 24 hours. We expect such a low activity to persist 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 in situ data indicate possible late arrival of the solar wind, associate with negative polarity equatorial coronal hole which reached central meridian on March 25. The fluctuations of the interplanetary magnetic field started at about 02:40 UT this morning, simultaneously with the increase of the density. The solar wind speed is still low amounting about 410 km/s and the interplanetary magnetic field magnitude is about 6 nT. The geomagnetic conditions are presently unsettled to active, local station at Dourbes reported K=3 and NOAA reported Kp=4 at about 06 UT this morning. We expect unsettled to possibly active geomagnetic conditions in the coming hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 22 stations.

Indices solaires pour 30 Mar 2019

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	069
AK Chambon La Forêt	007
AK Wingst	004
Ap estimé	002
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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