Affichage des archives de mardi, 14 novembre 2023

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2023 Nov 14 1235 UTC

Prévisions SIDC

Éruptions solaires

C-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
14 Nov 2023	134	016
15 Nov 2023	130	007
16 Nov 2023	124	007

Régions solaires actives et éruptions solaires

There are six active regions visible on the disk. Flaring activity has been low, with only minor C-class flaring in the last 24 hours. The strongest one was a C2.9 flare from NOAA AR 3477 (beta magnetic field configuration), peaking at 20:50 UTC on 13 November. NOAA AR 3483 has a beta-gamma magnetic field configuration while the other regions have simpler beta magnetic field configuration. Most of these active regions are rotation out of view over the west limb. More C-class flares are expected.

Éjection de masse coronale

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

Vent solaire

In the last 24 hours, the Earth was under the influence of an ICME corresponding probably to an early arrival of the CME from 10 November. The ICME arrived around 16:20 UTC on 13 November with an interplanetary magnetic field reaching 15 nT (with positive Bz) and solar wind speed around 450 km/s. Similar disturbed conditions can be expected for the next 24 hours.

Géomagnétisme

During the last 24 hours the geomagnetic conditions were quiet to unsettled (NOAA KP 3, K_Bel 3). Since Bz was positive within the ICME so far, its geomagnetic impact was minor. Similar conditions can be expected in the next 24 hours, with possible active and minor storm periods if Bz turns negative.

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 moderate 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 : 060, sur la base de 10 stations.

Indices solaires pour 13 Nov 2023

Nombre de Wolf, observé par Catania	080
Flux solaire à 10 cm	134
AK Chambon La Forêt	013
AK Wingst	018
Ap estimé	018
Nombre international de taches solaires estimé	074 - Basé sur 14 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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