Affichage des archives de mercredi, 27 novembre 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Nov 27 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
27 Nov 2019	071	007
28 Nov 2019	071	013
29 Nov 2019	070	006

Bulletin

Solar activity was at very low levels. The Sun was spotless and will most likely remain so. A small active region is rotating over the east limb (SDO/AIA). 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.

Solar activity is expected to remain at very low levels.

Solar wind speed varied between 420 and 380 km/s (ACE). Bz varied between -4 and + 3 nT. The interplanetary magnetic field (phi angle) was mostly directed away from the Sun (positive sector). Geomagnetic activity was at quiet levels (both Kp and K Dourbes).

Geomagnetic activity is expected to be at quiet to unsettled levels. The earth environment is expected to become affected by the wind stream from the negative polarity coronal hole later today or tomorrow, increasing the possibility on an active episode.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 06 stations.

Indices solaires pour 26 Nov 2019

Nombre de Wolf, observé par Catania	000
Flux solaire à 10 cm	070
AK Chambon La Forêt	004
AK Wingst	002
Ap estimé	002
Nombre international de taches solaires estimé	000 - Basé sur 13 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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