Affichage des archives de lundi, 4 décembre 2017
Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC
Publié: 2017 Dec 04 1233 UTC
Prévisions SIDC
Éruptions solaires
Quiet conditions (<50% probability of C-class flares)
Géomagnétisme
Active conditions expected (A>=20 or K=4)
Moniteur de Flux de Proton
Quiet
| Flux de 10 cm | Ap | |
|---|---|---|
| 04 Dec 2017 | 069 | 006 |
| 05 Dec 2017 | 069 | 043 |
| 06 Dec 2017 | 069 | 037 |
Bulletin
The solar activity remained very quiet. The visible solar disc is spotless and no flare has been recorded in past 24-hour. Quiet flaring conditions are expected.
No Earth directed Coronal Mass Ejection has been observed. The solar protons flux (greater than 10 MeV) remained at nominal levels over the past 24 hours and is expected to remain so.
Solar wind conditions were at nominal levels: The speed of the solar wind was around 300 and 350 km/s; the interplanetary magnetic field magnitude was below 6 nT over the last period except at 04:42 on Dec 4 it reached 9.2 nT; the Bz component of the magnetic field globally varied between +5 nT and -5 nT and reached -7.8 nT at 04:45 on Dec 4. The high speed stream associated with the extension of the northern polar Coronal Hole that has transited the central meridian on Nov 31 is expected to reach Earth with in this period.
The geomagnetic conditions were at the nominal level with K-Dourbes and Kp ranging between 0 and 2. The geomagnetic activity is expected to be unset to active with to arrival of the high speed stream by the end of this period.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 14 stations.Indices solaires pour 03 Dec 2017
| Nombre de Wolf, observé par Catania | /// |
| Flux solaire à 10 cm | 070 |
| AK Chambon La Forêt | 004 |
| AK Wingst | 001 |
| Ap estimé | 002 |
| Nombre international de taches solaires estimé | 000 - Basé sur 15 stations |
Résumé des événements marquants
| Jour | Commencer | Max | Fin | Loc | Force | OP | 10cm | Catania/NOAA | Types de sursaut radio | |
|---|---|---|---|---|---|---|---|---|---|---|
| Aucun | ||||||||||
Données fournies par le Solar Influences Data analysis Center© - SIDC - Traité par SpaceWeatherLive
Toutes les heures sont indiquées en UTC
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