Affichage des archives de mercredi, 1 août 2018

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2018 Aug 01 1231 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
01 Aug 2018	069	008
02 Aug 2018	069	008
03 Aug 2018	069	008

Bulletin

Solar activity was at very low levels. Early on 1 August, a small sunspot group developed in the faculae field located at S08E40 (06UT). It has no NOAA or Catania number yet. Another, smaller, faculae field near N11W65 is currently spotless, but contained a small spot/pore late on 31 July. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels.

Solar activity is expected to remain at very low levels.

Solar wind remained somewhat disturbed with wind speeds between 300 and 340 km/s (DSCOVR). A more pronounced speed increase set in starting around 08UT (ACE), with current speeds near 400 km/s. Bz varied mostly between -5 and +8 nT throughout the period. The direction of the interplanetary magnetic field slowly undulated between "towards" and "away from" the Sun. Quiet to unsettled geomagnetic conditions were observed.

Geomagnetic activity is expected to continue at quiet to unsettled levels.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 012, sur la base de 22 stations.

Indices solaires pour 31 Jul 2018

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	069
AK Chambon La Forêt	012
AK Wingst	007
Ap estimé	006
Nombre international de taches solaires estimé	/// - Basé sur /// 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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