Affichage des archives de samedi, 26 août 2017

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2017 Aug 26 1305 UTC

Prévisions SIDC

Éruptions solaires

C-class flares expected, (probability >=50%)

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
26 Aug 2017	081	004
27 Aug 2017	082	003
28 Aug 2017	081	007

Bulletin

Over the past 24 hours solar activity has been low. There have been several B-flares flares originated at NOAA AR 2671 (McIntosh: Fai; Mag.Type: Beta-Gamma) and at NOAA AR 2672 (McIntosh: Eai; Mag.Type: Beta- Gamma). The biggest flare B3.7 peaked today (26-Aug-2017) at 02:15 UT. No Earth-directed CMEs have been detected over the past 24 hours. Solar protons have remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with some probability of C-class flares and a very low probability of M-class flares. The solar wind speed has fluctuated around 350 km/s over the past 24 hours. The total magnetic field strength has fluctuated around 5 nT. The Bz component fluctuated between -2.5 and 3.5 nT. Geomagnetic conditions ranged between Kp index 1-2 (NOAA) and local K index 0-3 (Dourbes) over the past 24 hours. Geomagnetic conditions are expected to be quiet for the next 2 days. Quiet to unsettled conditions can be expected on day three (28-Aug-2017) due to the weak influence of a negative polarity CH HSS.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 048, sur la base de 23 stations.

Indices solaires pour 25 Aug 2017

Nombre de Wolf, observé par Catania	044
Flux solaire à 10 cm	081
AK Chambon La Forêt	008
AK Wingst	006
Ap estimé	004
Nombre international de taches solaires estimé	050 - Basé sur 35 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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