Affichage des archives de mercredi, 5 janvier 2022

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2022 Jan 05 1238 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
05 Jan 2022	088	003
06 Jan 2022	090	007
07 Jan 2022	090	004

Bulletin

Solar activity was at very low levels. The small region which emerged yesterday (Catania group 1, NOAA Active Region 2924) was stable. A new active region has just rotated onto the solar disk (Catania group 2, S33E78), but its complexity cannot yet be determined. Solar activity is expected to be at very low levels.

No Earth directed Coronal Mass Ejections (CMEs) have been observed in the available coronagraph data.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours and is expected to remain so in the next 24 hours. The greater than 2MeV electron flux remained under the 1000 pfu threshold and is expected to remain just below this threshold in the next days. The 24h electron fluence was at normal levels and is expected to be at normal levels over the next 24 hours.

The Solar wind parameters reflected a slow solar wind regime. The solar wind speed ranged between 340 and 430 km/s. The total magnetic field magnitude oscillated around 5 nT, with a variable Bz component. The interplanetary magnetic field phi angle was predominantly in the positive sector (directed away from the Sun). The solar wind speed is expected to continue to reflect a slow solar wind regime over the next 48 hours.

Geomagnetic conditions were quiet (NOAA Kp 0-2 and local K Belgium 0-1) and are expected to be quiet over the next 48 hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 025, sur la base de 11 stations.

Indices solaires pour 04 Jan 2022

Nombre de Wolf, observé par Catania	013
Flux solaire à 10 cm	086
AK Chambon La Forêt	006
AK Wingst	005
Ap estimé	005
Nombre international de taches solaires estimé	012 - Basé sur 17 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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