Affichage des archives de samedi, 3 juin 2023

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2023 Jun 03 1231 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
03 Jun 2023	162	007
04 Jun 2023	160	007
05 Jun 2023	160	007

Régions solaires actives et éruptions solaires

There are ten visible active regions on the solar disk. Only C-class flaring has been observed in the last 24 hours, from NOAA ARs 3315, 3319, 3323, 3324, and 3326. The strongest flare was a C6.3 from NOAA AR 3324, peaking at 22:42 UTC on 2 June. More C-class flares will be observed and M-class flares are possible.

Éjection de masse coronale

No Earth-directed coronal mass ejections (CMEs) were detected in the past 24 hours.

Trous coronaux

There are two positive polarity coronal holes, a small one close to the equator and another larger one in the south. The corresponding high speed streams seem to have missed the Earth.

Vent solaire

In the last 24 hours the solar wind speed has decreased to 340 km/s and the interplanetary magnetic field to 3 nT, its polarity has turned positive (away from the Sun). Similar conditions can be expected for the next 24 hours. There are slight chances of still seeing fast solar winds from the two coronal holes, but their effect is not expected to be important.

Géomagnétisme

The geomagnetic conditions over the past 24 hours have been quiet to moderate (K_Belgium and Kp up to 4). Similar conditions can be expected for the next 24 hours.

Niveaux de flux de protons

Over the past 24 hours the greater than 10 MeV GOES proton flux was at nominal levels and is expected to remain so in the next 24 hours.

Flux d'électrons sur l'orbite géostationnaire

The greater than 2 MeV electron flux was below the 1000 pfu threshold over the past 24 hours and is expected to remain so in the next 24 hours. The 24h electron fluence was at normal levels and is expected to remain at normal levels over the next 24 hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 135, sur la base de 18 stations.

Indices solaires pour 02 Jun 2023

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	162
AK Chambon La Forêt	008
AK Wingst	006
Ap estimé	006
Nombre international de taches solaires estimé	136 - Basé sur 28 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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