Affichage des archives de jeudi, 25 juillet 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Jul 25 1230 UTC

Prévisions SIDC

Éruptions solaires

Quiet conditions (<50% probability of C-class flares)

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
25 Jul 2019	068	006
26 Jul 2019	068	007
27 Jul 2019	068	007

Bulletin

The solar activity has been quiet over the past 24 hours. The sun is currently spotless and the X-ray flux remained below B-level. Solar activity is expected to remain at low levels for the next 24 hours.

No Earth directed coronal mass ejections (CME) were observed over the last 24 hours in the available coronagraph imagery. The greater than 10 MeV proton flux remained at background levels over the past 24 hours and is expected to remain at low levels.

The solar wind speed was mostly stable with values ranging between 375 km/s and 400 km/s (ACE). The total interplanetary magnetic field remained below 6 nT, the Bz component varied between -4 nT and +4 nT. The solar wind parameters might show some small enhancement due to the very mild effect of the small south polar coronal hole wind streams.

Quiet geomagnetic conditions were observed with the Kp index (NOAA) and the local K index (Dourbes) ranging between 0-2 over the past 24 hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 26 stations.

Indices solaires pour 24 Jul 2019

Nombre de Wolf, observé par Catania	000
Flux solaire à 10 cm	068
AK Chambon La Forêt	009
AK Wingst	007
Ap estimé	005
Nombre international de taches solaires estimé	000 - Basé sur 37 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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