Affichage des archives de lundi, 11 juin 2018

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2018 Jun 11 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
11 Jun 2018	070	006
12 Jun 2018	071	011
13 Jun 2018	071	017

Bulletin

Solar activity was very low, with X-ray flux remaining below B level. A new region is rotating onto the disk, but at present chances for C flares are still judged to be very low.

No Earth directed CMEs have been observed in coronagraph data.

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

A small negative polarity coronal hole in the southern hemisphere has passed the central meridian yesterday. It may become geoeffective from late June 12.

Solar wind conditions have been nominal with solar wind speed further decreasing to below 300 km/s. Total magnetic field was 1-4 nT with the Bz component mainly negative but not reaching below -3nT. The magnetic field phi angle was initially variable but now clearly indicates a negative sector connection. Solar wind conditions may become slightly disturbed from late June 12 due a small coronal hole in the Southern hemisphere.

Geomagnetic conditions were quiet (local K Dourbes 1-2, and NOAA Kp 1) and are initially expected to remain so. Later unsettled conditions may be experienced.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 14 stations.

Indices solaires pour 10 Jun 2018

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	070
AK Chambon La Forêt	006
AK Wingst	///
Ap estimé	004
Nombre international de taches solaires estimé	000 - Basé sur 22 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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