Affichage des archives de dimanche, 3 février 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Feb 03 1230 UTC

Prévisions SIDC

Éruptions solaires

Quiet conditions (<50% probability of C-class flares)

Géomagnétisme

Active conditions expected (A>=20 or K=4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
03 Feb 2019	071	016
04 Feb 2019	072	010
05 Feb 2019	074	007

Bulletin

No flares in past 24 h. The region that rotated into view from the east limb has no sunspots, the Sun is spotless. Solar activity has been very low and is expected to remain so,

No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar protons have remained at background levels over the past 24 hours.

The solar wind speed is at 580 km/s with interplanetary magnetic fields of 3 nT. Geomagnetic conditions reached active values in the past 24 hours both locally at Dourbes (k = 4, from 16:00 UT to 18:00 UT, and from 22:00 UT to 00:00 UT) and at planetary levels (Kp = 4, from 15:00 UT to 18:00 UT and from 00:00 UT until 03:00 UT). The Earth is still inside the high speed stream from a negative polarity coronal hole. Mostly unsettled conditions expected, active periods remain likely to happen as the solar wind speed is still elevated (due to the extended and patchy shape of the coronal hole).

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 19 stations.

Indices solaires pour 02 Feb 2019

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	071
AK Chambon La Forêt	023
AK Wingst	///
Ap estimé	019
Nombre international de taches solaires estimé	000 - Basé sur 15 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

<< Aller à l'aperçu quotidien