Affichage des archives de jeudi, 14 juin 2018

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2018 Jun 14 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
14 Jun 2018	071	014
15 Jun 2018	071	010
16 Jun 2018	071	007

Bulletin

Solar activity has been very low with X-ray flux remaining below B level. As the only region on disk (the bipolar Catania group 86; NOAA region 2713) is stable and inactive, chances for C flaring remain very low.

No Earth directed CMEs have been recorded in coronagraph images.

Solar proton flux levels were at background values and are expected to remain so.

A recurrent positive polarity coronal hole at low latitude in the Northern hemisphere is about to cross the central meridian. Its high speed stream may possibly influence the solar wind conditions around Earth from June 18 onwards.

Solar wind conditions were nominal with solar wind mainly around 300 km/s and with an increasing trend towards 350 km/s currently. Total magnetic field was between 2-8nT with Bz seeing a downward peak close to -6nT. Solar wind speed may see some further increase but overall conditions should remain near nominal.

Geomagnetic conditions were quiet (local K Dourbes and NOAA Kp 1-2) with an isolated unsettled period locally. Geomagnetic conditions are expected to remain quiet with initially still an isolated unsettled period possible.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 016, sur la base de 13 stations.

Indices solaires pour 13 Jun 2018

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	071
AK Chambon La Forêt	010
AK Wingst	///
Ap estimé	007
Nombre international de taches solaires estimé	016 - Basé sur 19 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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