Affichage des archives de samedi, 16 mai 2020

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2020 May 16 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
16 May 2020	069	003
17 May 2020	070	005
18 May 2020	070	007

Bulletin

The Sun was spotless. Solar activity was at very low levels. A small active region (AR) is expected to round the northeast limb later today. There's also a smaller AR at the southeast limb. Solar activity is expected to stay at very low levels, with a small chance on a C-class flare.

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 speed varied mostly between 300 and 330 km/s, with Bz varying between -3 and +3 nT (DSCOVR). The direction of the interplanetary magnetic field (phi angle) was in a predominately positive sector (away from the Sun).

Geomagnetic activity was at quiet levels. Geomagnetic conditions are expected to be mostly quiet with an occasional unsettled episode possible.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 19 stations.

Indices solaires pour 15 May 2020

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	068
AK Chambon La Forêt	///
AK Wingst	003
Ap estimé	004
Nombre international de taches solaires estimé	000 - Basé sur 27 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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