(10935) 1998 EC

(10935) 1998 EC
Caractéristiques orbitales
Époque (JJ 2458200,5)[1]
Établi sur 1 506 observ. couvrant 9779 (U = 0)
Demi-grand axe (a) 379,875 × 106 km[1]
(2,539 31 ua)
Périhélie (q) 302,906 × 106 km[1]
(2,024 80 ua)
Aphélie (Q) 456,843 × 106 km[1]
(3,053 81 ua)
Excentricité (e) 0,20[1]
Période de révolution (Prév) 1 477 j
(4,5 a)
Inclinaison (i) 16,74°[1]
Longitude du nœud ascendant (Ω) 97,49°[1]
Argument du périhélie (ω) 248,4°[1]
Anomalie moyenne (M0) 164,9°[1]
Catégorie Astéroïde de la ceinture principale[1],[2]
Caractéristiques physiques
Dimensions 6,965 km
Magnitude absolue (H) 13,0[1],[2]
Albédo (A) 0,252

Découverte
Date le [1],[2]
Découvert par Takao Kobayashi[1],[2]
Lieu Ōizumi (Japon)[2]
Désignation 1998 EC
1977 AQ1
1991 PK9
1992 WY8

(10935) 1998 EC est un astéroïde de la ceinture principale d'astéroïdes de 6,965 km de diamètre découvert en 1998.

Description

(10935) 1998 EC a été découvert le à l'observatoire astronomique d'Ōizumi, situé à Ōizumi, dans la préfecture de Gunma, au Japon, par Takao Kobayashi.

Caractéristiques orbitales

L'orbite de cet astéroïde est caractérisée par un demi-grand axe de 2,54 ua, un périhélie de 2,02 ua, une excentricité de 0,20 et une inclinaison de 16,74° par rapport à l'écliptique[1]. Du fait de ces caractéristiques, à savoir un demi-grand axe compris entre 2 et 3,2 ua et un périhélie supérieur à 1,666 ua, il est classé, selon la JPL Small-Body Database, comme objet de la ceinture principale d'astéroïdes[1].

Caractéristiques physiques

(10935) 1998 EC a une magnitude absolue (H) de 13,0 et un albédo estimé à 0,252, ce qui permet de calculer un diamètre de 6,965 km. Ces résultats ont été obtenus grâce aux observations du Wide-Field Infrared Survey Explorer (WISE), un télescope spatial américain mis en orbite en 2009 et observant l'ensemble du ciel dans l'infrarouge, et publiés en 2011 dans un article présentant les premiers résultats concernant les astéroïdes de la ceinture principale[3].

Voir aussi

Articles connexes

Liens externes

Références

  1. a b c d e f g h i j k l m n et o (en) « (10935) 1998 EC » [html], sur le site du Jet Propulsion Laboratory (consulté le )
  2. a b c d et e (en) « (10935) 1998 EC » [html], sur le site du Centre des planètes mineures (consulté le )
  3. (en) Joseph R Masiero, A. K Mainzer, T. Grav, J.M. Bauer, R.M. Cutri, J. Dailey,P.R.M. Eisenhardt, R.S. McMillan, T.B. Spahr, M.F. Skrutskie, D. Tholen, R.G. Walker, E.L. Wright, E. DeBaun, D. Elsbury, T. Gautier, S. Gomillion, A. Wilkins, « Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters », The Astrophysical Journal, vol. 741, no 2,‎ (DOI 10.1088/0004-637X/741/2/68)


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