Affichage des archives de vendredi, 7 juin 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Jun 07 1230 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
07 Jun 2019	069	007
08 Jun 2019	070	008
09 Jun 2019	070	008

Bulletin

Solar activity has been quiet over the past 24 hours. The X-ray flux remained at background levels, and the visible solar disc is spotless. EUV imagery reveals a simple magnetic structure near the central meridian, but appears stable in magnetogram observations. Solar activity is expected to remain at low levels for the next 24 hours. No Earth directed Coronal Mass Ejections (CME) have been detected in the available coronagraph imagery over the past 24 hours. The greater than 10 MeV solar protons flux remained at nominal levels over the past 24 hours and is expected to remain so. The solar wind speed has fluctuated between 310 and 350 km/s over the past 24 hours. The total magnetic field strength has fluctuated between 3.0 and 5.0 nT. The Bz component fluctuated around 0 nT, between -2.0 and 2.0 nT. Geomagnetic conditions fluctuated between Kp index 0-1 (NOAA) and local K index 0-3 (Dourbes) over the past 24 hours. The Earth is currently under the influence of a slow solar wind stream. A small CME, observed in STEREO COR imagery on 03-Jun-2019, with a speed of approximately 210 km/s, is anticipated to interact with the Earth system later today / early tomorrow, but the effects are expected to be small. Geomagnetic conditions are expected to be quiet with a small possibility of active conditions, if the CME interacts with the Earth.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 20 stations.

Indices solaires pour 06 Jun 2019

Nombre de Wolf, observé par Catania	000
Flux solaire à 10 cm	069
AK Chambon La Forêt	006
AK Wingst	002
Ap estimé	002
Nombre international de taches solaires estimé	000 - Basé sur 26 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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