Affichage des archives de dimanche, 21 novembre 1999

Rapport d'activité solaire

Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Rapport d'activité solaire et géophysique 1999 Nov 21 2200 UTC
Fait par le NOAA © SWPC et adapté par SpaceWeatherLive.com

Rapport de l'USAF/NOAA sur l'activité solaire et géophysique

SDF numéro 325 publié à 2200Z le 21 NOV 1999

IA. Analyse des régions solaires actives et activité du 20-2100Z au 21-2100Z

SOLAR ACTIVITY INCREASED TO MODERATE LEVELS. REGION 8765 (S12W60) PRODUCED THREE M-CLASS FLARES, AN M1/1N AT 21/0014Z ASSOCIATED WITH A 280 SFU TENFLARE, AN M2/SN AT 21/1017Z, AND AN M3/2N AT 21/1820Z ASSOCIATED WITH A 270 SFU TENFLARE. THIS REGION SHOWED A SLIGHT DECREASE IN MAGNETIC FIELD INTENSITY, BUT REMAINED LARGE AND STRUCTURALLY COMPLEX, POSSIBLY INCLUDING A MAGNETIC DELTA CONFIGURATION WITHIN ITS INTERIOR SPOTS. REGION 8771 (S16E01) SHOWED A MAGNETIC DELTA CONFIGURATION WITHIN ITS TRAILER PORTION AND UNDERWENT MINOR DEVELOPMENT. IT PRODUCED AN M3/2B FLARE AT 20/2235Z ASSOCIATED WITH A TYPE II RADIO SWEEP (EST. VELOCITY 700 KM/SEC). REGION 8768 (N16W65) SHOWED A MINOR INCREASE IN SPOT COUNT DURING THE PERIOD AND PRODUCED ISOLATED SUBFLARES, NONE OF WHICH WERE ASSOCIATED WITH SIGNIFICANT X-RAY EMISSION. REGION 8766 (N18W36) DECAYED SLIGHTLY. THE REMAINING REGIONS WERE SMALL AND STABLE INCLUDING NEWLY NUMBERED REGIONS 8777 (S26E40) AND 8778 (S14E62).
IB. Prévisions d'activité solaire
SOLAR ACTIVITY IS EXPECTED TO REMAIN AT MODERATE LEVELS. REGIONS 8765 AND 8771 ARE EXPECTED TO PRODUCE M-CLASS FLARES. THERE IS ALSO A CHANCE FOR A MAJOR FLARE, ESPECIALLY FROM REGION 8765.
IIA. Résumé de l'activité géophysique du 20-2100Z au 21-2100Z
GEOMAGNETIC FIELD ACTIVITY RANGED FROM QUIET TO MINOR STORM LEVELS. A BRIEF PERIOD OF ACTIVE TO MINOR STORM LEVELS OCCURRED AROUND 21/0600Z FOLLOWING A 3-HOUR PERIOD OF SUSTAINED SOUTHWARD IMF BZ. THE GEOMAGNETIC FIELD WAS AT QUIET TO UNSETTLED LEVELS DURING THE REST OF THE PERIOD. THE GREATER THAN 2 MEV ELECTRON FLUX BRIEFLY REACHED HIGH LEVELS LATE IN THE PERIOD.
IIB. Prévision de l'activité géophysique
GEOMAGNETIC FIELD ACTIVITY IS EXPECTED TO RANGE FROM QUIET TO ACTIVE LEVELS. ACTIVE LEVELS ARE POSSIBLE DURING 23 NOVEMBER DUE TO CORONAL HOLE EFFECTS. THE GREATER THAN 2 MEV ELECTRON FLUX IS EXPECTED TO BE AT MODERATE TO HIGH LEVELS.
III. Probabilité d'éruption solaire du 22 NOV au 24 NOV
Classe M80%80%80%
Classe X20%20%20%
Proton15%15%15%
PCAFYELLOW
IV. Flux Penticton 10.7 cm
  Observé       21 NOV 210
  Prévisionnel   22 NOV-24 NOV  195/185/170
  Moyenne des 90 derniers jours        21 NOV 167
V. Indice géomagnetique A
OBSERVED AFR/AP 20 NOV  007/009
ESTIMATED AFR/AP 21 NOV  015/010
PREDICTED AFR/AP 22 NOV-24 NOV  012/015-015/018-012/015
VI. Probabilités d'activité géomagnétique du 22 NOV au 24 NOV
A. Latitudes moyennes
Actif25%35%25%
Tempête mineure10%15%10%
Tempête majeure/sévère01%01%01%
B. Hautes latitudes
Actif30%40%30%
Tempête mineure15%20%15%
Tempête majeure/sévère01%01%01%

<< Aller à l'aperçu quotidien

Dernières nouvelles

Aidez SpaceWeatherLive.com !

Vous êtes de plus en plus nombreux à consulter SpaceWeatherLive pour suivre l'activité solaire ou aurorale, et avec le traffic les coûts du serveur augmentent. Si vous appréciez SpaceWeatherLive, soutenez notre projet en faisant un don afin que nous puissions continuer à vous informer !

54%
Soutenir SpaceWeatherLive avec nos produits dérivés
Découvrez nos produits dérivés

La Météo Spatiale en faits

Dernière classe X28/03/2024X1.1
Dernière classe M25/04/2024M1.3
Dernier orage géomagnétique19/04/2024Kp7 (G3)
Jours sans taches solaires
Dernier jour sans taches solaires08/06/2022
Nombre mensuel moyen de taches solaires
mars 2024104.9 -19.8
Last 30 days133.9 +26.6

A ce jour dans l'histoire*

Éruptions solaires
12014X1.99
22001M3.98
32004M3.25
42003M1.84
52024M1.3
ApG
1200333G1
2201227G1
3199826G1
4202118G1
5199517G1
*depuis 1994

Les réseaux sociaux