Affichage des archives de samedi, 18 novembre 2023
Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC
Publié: 2023 Nov 18 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 | |
|---|---|---|
| 18 Nov 2023 | 120 | 007 |
| 19 Nov 2023 | 122 | 007 |
| 20 Nov 2023 | 126 | 007 |
Régions solaires actives et éruptions solaires
There are two active regions visible on the disk. The strongest flare was an M1.2 from an unnumbered region on the east limb, peaking at 05:42 UTC. More M-class flares are possible in the next 24 hours.
Éjection de masse coronale
No Earth directed CMEs were observed in the last 24 hours.
Trous coronaux
Two coronal holes crossed the central meridian in the past 24 hours, one with negative polarity at high northern latitudes and an equatorial one with positive polarity.
Vent solaire
The Earth is immersed in slow solar wind, over the last 24 hours solar wind speed has decreased to 300 km/s and the interplanetary magnetic field is around 5 nT. Same conditions are expected for the next 24 hours.
Géomagnétisme
During the last 24 hours the geomagnetic conditions were quiet globally and locally (NOAA KP 1, K_Bel 1). 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 below threshold 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 : 033, sur la base de 07 stations.
Indices solaires pour 17 Nov 2023
| Nombre de Wolf, observé par Catania | 040 |
| Flux solaire à 10 cm | 120 |
| AK Chambon La Forêt | 005 |
| AK Wingst | 004 |
| Ap estimé | 003 |
| Nombre international de taches solaires estimé | 027 - Basé sur 23 stations |
Résumé des événements marquants
| Jour | Commencer | Max | Fin | Loc | Force | OP | 10cm | Catania/NOAA | Types de sursaut radio |
|---|---|---|---|---|---|---|---|---|---|
| 18 | 0537 | 0542 | 0550 | ---- | M1.2 | --/---- |
Données fournies par le Solar Influences Data analysis Center© - SIDC - Traité par SpaceWeatherLive
Toutes les heures sont indiquées en UTC
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La Météo Spatiale en faits
| Dernière classe X | 08/12/2025 | X1.1 |
| Dernière classe M | 20/12/2025 | M1.0 |
| Dernier orage géomagnétique | 12/12/2025 | Kp5 (G1) |
| Jours sans taches solaires | |
|---|---|
| Dernier jour sans taches solaires | 08/06/2022 |
| Nombre mensuel moyen de taches solaires | |
|---|---|
| novembre 2025 | 91.8 -22.8 |
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