Affichage des archives de vendredi, 31 août 2018

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2018 Aug 31 1230 UTC

Prévisions SIDC

Valable à partir de 1230 UTC, 31 Aug 2018 jusqu'à 02 Sep 2018
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 cmAp
31 Aug 2018068007
01 Sep 2018067008
02 Sep 2018067006

Bulletin

Over the past 24 hours solar activity has been Low. No significant flares have been recorded. There are currently no ARs on the solar disk, although a new AR has reached the East solar limb, but appears quiet. No Earth directed Coronal Mass Ejections (CMEs) have been detected. 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 low probability of C-class flares. The solar wind speed has fluctuated between 350 and 400 km/s over the past 24 hours. The total magnetic field strength has been slowly increasing from around 2nT to 6 nT. The Bz component has fluctuated around 0, ranging between -1 and +3 nT. Geomagnetic conditions ranged between Kp index 0-2 (NOAA) and local K index 1-3 (Dourbes) over the past 24 hours. Small enhancements in geomagnetic activity may be experienced due to a region of patchy coronal hole that was located near disk centre a few days ago. Geomagnetic conditions are expected to be quiet to unsettled.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 17 stations.

Indices solaires pour 30 Aug 2018

Nombre de Wolf, observé par Catania000
Flux solaire à 10 cm068
AK Chambon La Forêt010
AK Wingst006
Ap estimé004
Nombre international de taches solaires estimé000 - Basé sur 39 stations

Résumé des événements marquants

JourCommencerMaxFinLocForceOP10cmCatania/NOAATypes de sursaut radio
Aucun

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

Dernières nouvelles

Aidez SpaceWeatherLive.com !

A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!

No Ads on SWL Pro!
No Ads on SWL Pro! Abonnements
Donations
Aidez SpaceWeatherLive.com ! Faites un don
Soutenir SpaceWeatherLive avec nos produits dérivés
Découvrez nos produits dérivés

La Météo Spatiale en faits

Dernière classe X08/12/2025X1.1
Dernière classe M27/12/2025M5.1
Dernier orage géomagnétique22/12/2025Kp5 (G1)
Jours sans taches solaires
Dernier jour sans taches solaires08/06/2022
Nombre mensuel moyen de taches solaires
novembre 202591.8 -22.8
décembre 2025114.9 +23.1
30 derniers jours112.3 +26.4

A ce jour dans l'histoire*

Éruptions solaires
12000M6.23
22025M5.1
32001M3.32
42024M3.3
52014M3.28
DstG
11960-108G2
21991-74G2
32002-68G2
42022-68
51988-59
*depuis 1994

Les réseaux sociaux