Affichage des archives de dimanche, 1 décembre 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Dec 01 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
01 Dec 2019	070	003
02 Dec 2019	070	003
03 Dec 2019	070	005

Bulletin

Solar activity was at very low levels. The visible solar disk was spotless. No earth-directed coronal mass ejections (CMEs) have been observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal values. A weak extension from the southern polar coronal hole has transited the central meridian.

Solar activity is expected to remain at very low levels.

Solar wind speed was on a generally declining trend, from about 400 km/s at the beginning to near 360 km/s by the end of the period (ACE). The interplanetary magnetic field (phi angle) was directed towards the Sun (negative sector). Bz varied between -5 and +3 nT, most of the time being close to 0 nT. Geomagnetic activity was at quiet levels.

Geomagnetic activity is expected to remain at mostly quiet levels, an unsettled interval not excluded on 3 or 4 December if the weak CH wind stream affects the earth environment.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 08 stations.

Indices solaires pour 30 Nov 2019

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	070
AK Chambon La Forêt	006
AK Wingst	004
Ap estimé	003
Nombre international de taches solaires estimé	/// - Basé sur /// 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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