Affichage des archives de mercredi, 3 mai 2017

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2017 May 03 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
03 May 2017	076	003
04 May 2017	075	006
05 May 2017	074	007

Bulletin

Over the past 24 hours solar activity has been low. No significant flares have been recorded. Active Region (AR) 2654 (Mcintosh class:Dao; Mag. type:Beta) has shown some evidence of flux emergence and cancellation in HMI magnetogram observations, this may increase flaring activity. No Earth directed Coronal Mass Ejections (CMEs) have been detected in coronagraph observations. The greater than 10MeV proton flux remained at background levels over the past 24 hours. Solar activity is expected to remain low over the next 24 hours with a small probability of C-class flares. The solar wind speed has fluctuated between 410 and 435 km/s over the past 24 hours. The total magnetic field strength has fluctuated between 3 nT and 6 nT. The Bz component was largely positive, fluctuating between -2 and +4 nT. Geomagnetic conditions ranged between Kp index 0-2 (NOAA) and local K index 0-2 (Dourbes) over the past 24 hours. Over the next 24 hours Geomagnetic conditions are expected to be quiet, with possible fluctuations due to a CME produced on 30-Apr-2017, however the effects are expected to be small as only a glancing blow is expected at best.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 017, sur la base de 17 stations.

Indices solaires pour 02 May 2017

Nombre de Wolf, observé par Catania	029
Flux solaire à 10 cm	077
AK Chambon La Forêt	007
AK Wingst	006
Ap estimé	004
Nombre international de taches solaires estimé	028 - 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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