Affichage des archives de mardi, 5 mars 2024

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2024 Mar 05 1237 UTC

Prévisions SIDC

Éruptions solaires

C-class flares expected, (probability >=50%)

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
05 Mar 2024	139	010
06 Mar 2024	139	010
07 Mar 2024	140	007

Régions solaires actives et éruptions solaires

The solar flaring activity was low during the last 24 hours with few C-class flares. The strongest reported flare was GOES C2.7 flare which peaked at 11:25 UTC today. During the flare, the source region (AR 3598) of the flare had beta configuration of its photospheric magnetic field. The solar flaring activity is expected to be at low to moderate levels over the next 24 hours with few C-class flares, and a low chance for M-class flares.

Éjection de masse coronale

No Earth-directed coronal mass ejections (CMEs) were detected in the available coronagraph observations during last 24 hour.

Trous coronaux

A small high latitude northern coronal hole (negative polarity) has crossed the central meridian on Mar 05, and it will not possibly impact the Earth. Another very small equatorial (negative polarity) coronal hole is crossing the central meridian on Mar 05. The solar wind from this coronal hole may enhance the solar wind environment near Earth on Mar 08.

Vent solaire

Solar wind parameters are transitioning from fast to slow solar wind regime. The solar wind speed ranged between 350 km/s and 450 km/s. The North-South component (Bz) ranged between -5 and 10 nT. The interplanetary magnetic field has decreased from 12 nT to 5 nT. Slow solar wind conditions are expected to continue over the next 24 hours.

Géomagnétisme

Geomagnetic conditions were globally and locally quiet to unsettled conditions (NOAA Kp and K BEL 1 to 3). Quiet to unsettled conditions are expected in the next 24 hours.

Niveaux de flux de protons

The greater than 10 MeV proton flux was below the threshold level over the past 24 hours and is expected to remain so for the next 24 hours.

Flux d'électrons sur l'orbite géostationnaire

The greater than 2 MeV electron flux, as measured by the GOES-16 satellite, was below the threshold level in the last 24 hours. It is expected that this parameter to remain below the threshold level in the next 24 hours. The 24h electron fluence is presently at normal level and is expected to remain so in the coming 24 hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 112, sur la base de 08 stations.

Indices solaires pour 04 Mar 2024

Nombre de Wolf, observé par Catania	134
Flux solaire à 10 cm	140
AK Chambon La Forêt	014
AK Wingst	009
Ap estimé	009
Nombre international de taches solaires estimé	110 - Basé sur 30 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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