Affichage des archives de vendredi, 17 novembre 2023

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2023 Nov 17 1231 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
17 Nov 2023	118	007
18 Nov 2023	116	007
19 Nov 2023	114	007

Régions solaires actives et éruptions solaires

There are two active regions visible on the disk. Only C-class flaring has been observed in the last 24 hours. The strongest flare was a C4.8 from an unnumbered region on the east limb, peaking at 20:22 UTC on 16 November. More C-class flares can be expected in the next 24 hours.

Éjection de masse coronale

Two CMEs were observed erupting on 16 November around 04:00 UTC, both eruptions were directed towards the west and originated from the backside of the Sun, so they are not expected to affect the Earth.

Vent solaire

The Earth is immersed in slow solar wind, over the last 24 hours solar wind speed has remained constant around 350 km/s and interplanetary magnetic field around 5 nT. Same conditions are expected for the next 24 hours.

Géomagnétisme

During the last 24 hours the geomagnetic conditions were quiet globally (NOAA KP 2) and unsettled locally (K_Bel 3). Mostly quiet conditions are 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 over the next 24 hours.

Flux d'électrons sur l'orbite géostationnaire

The greater than 2 MeV electron flux was below the 1000 pfu threshold, as measured by GOES 16. It is expected to remain so in the next 24 hours. The 24 hour electron fluence was at normal levels, it is expected to stay at those levels for the next 24 hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 026, sur la base de 16 stations.

Indices solaires pour 16 Nov 2023

Nombre de Wolf, observé par Catania	057
Flux solaire à 10 cm	118
AK Chambon La Forêt	011
AK Wingst	010
Ap estimé	008
Nombre international de taches solaires estimé	034 - Basé sur 13 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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