Affichage des archives de jeudi, 6 janvier 2022

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2022 Jan 06 1236 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
06 Jan 2022	088	005
07 Jan 2022	090	005
08 Jan 2022	090	010

Bulletin

Solar activity was at very low levels. NOAA Active Region 2924 (Catania group 1) displayed flux emergence and further trailer spot development over the period. NOAA AR 2925 (Catania group 2) has rotated further onto the solar disk and has beta magnetic field configuration. Solar activity is expected to be at very low levels with a low probability of C-class flares.

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 reach this threshold in the next days. The 24h electron fluence was at normal levels and is expected to be at normal to moderate levels over the next 24 hours.

The Solar wind parameters reflected a slow solar wind regime. The solar wind speed ranged between 340 and 450 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 on Jan 06 and Jan 07. From Jan 08, the Earth is expected to be influenced by the High Speed Stream (HSS) associated with the extension to the southern polar coronal hole that began to traverse the central meridian on Jan 05.

Geomagnetic conditions were quiet (NOAA Kp and local K Belgium 0-2) and are expected to be quiet on Jan 06 and Jan 07. Unsettled conditions with isolated active intervals are expected from Jan 08, due the HSS influence.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 035, sur la base de 18 stations.

Indices solaires pour 05 Jan 2022

Nombre de Wolf, observé par Catania	026
Flux solaire à 10 cm	084
AK Chambon La Forêt	004
AK Wingst	002
Ap estimé	002
Nombre international de taches solaires estimé	025 - Basé sur 18 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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