Affichage des archives de lundi, 11 mai 2020

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2020 May 11 1231 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
11 May 2020	068	007
12 May 2020	068	004
13 May 2020	068	007

Bulletin

The Sun was spotless. Solar activity was at very low levels and is expected to remain so.

The greater than 10 MeV proton flux and the greater than 2 MeV electron flux were at nominal levels during the last 24 hours and are expected to remain so.

No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery.

Solar wind parameters were variable following the arrival of the co- rotating interaction region and wind stream from a weak extension of the southern polar coronal hole (CH) early in the period (around 13:30UT). Solar wind speed gradually increased from its initial 300 km/s to 350 km/s around 05UT, and ended the period near 325 km/s (DSCOVR). Bz oscillated between -7 and +6 nT. The direction of the interplanetary magnetic field (phi angle) was variable, with a sunward orientation (negative sector) dominating during the second half of the period.

Geomagnetic activity was at quiet to unsettled levels. Geomagnetic conditions are expected to be quiet with an occasional unsettled period over the next 3 days due to weak CH wind streams.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 21 stations.

Indices solaires pour 10 May 2020

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	068
AK Chambon La Forêt	011
AK Wingst	004
Ap estimé	004
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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