Affichage des archives de dimanche, 8 février 2026

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2026 Feb 08 1231 UTC

Prévisions SIDC

Éruptions solaires

M-class flares expected (probability >=50%)

Géomagnétisme

Active conditions expected (A>=20 or K=4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
08 Feb 2026	169	013
09 Feb 2026	169	013
10 Feb 2026	169	007

Régions solaires actives et éruptions solaires

A total of 9 numbered sunspot groups were identified on the disk over the past 24 hours. There were two M-class flares in the last 24 hours. Both flares occurred close in time, the first one was an M1.8 peaking on February 8 at 11:18 UTC and the second one was an M1.7 on February 8 at 11:43 UTC. Both were produced by SIDC Sunspot Group 784 (NOAA Active Region 4366) currently located at N13W45 with a Beta-Gamma-Delta magnetic configuration. This region remains the largest and most complex on disk. Solar flaring activity is expected to be moderate over the next 24 hours, with M-class flares likely.

Éjection de masse coronale

No Earth directed CMEs were observed in the past 24 hours.

Trous coronaux

There are two equatorial coronal holes on the equator and on the western hemisphere: SIDC Coronal Hole 136 and 149 (equatorial coronal holes with a negative polarity). SIDC Coronal Hole 142 (mid-latitude coronal hole with a negative polarity) is also on the west, but at higher latitudes.

Vent solaire

The solar wind speed at Earth is at 450 km/s. The interplanetary magnetic field is around 6 nT. In the coming 24 hours, the solar wind speed is expected to increase due to the influence of coronal hole associated high speed streams (from SIDC 149 and probably also 142).

Géomagnétisme

Geomagnetic conditions have reached active periods at planetary levels in the last 24 hours (Kp up to 4), and only unsettled locally (K_Bel up to 3). Similar unsettled to active conditions can be expected for the next 24 hours.

Niveaux de flux de protons

The greater than 10 MeV proton flux remained below the 10 pfu threshold in the last 24 hours. Similar conditions can be expected for the next 24 hours.

Flux d'électrons sur l'orbite géostationnaire

The greater than 2 MeV electron flux as measured by GOES 19 was above the threshold between 12:00 UTC and 23:00 UTC on 7 February and GOES 18 between 14:00 UTC on 7 February and 02:00 UTC on 8 February. The flux is expected to remain below the threshold for the next 24 hours. The 24-hour electron fluence was at normal levels and is expected to remain so.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 150, sur la base de 11 stations.

Indices solaires pour 07 Feb 2026

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	169
AK Chambon La Forêt	026
AK Wingst	017
Ap estimé	018
Nombre international de taches solaires estimé	140 - 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

<< Aller à l'aperçu quotidien