(35881) 1999 JM77

(35881) 1999 JM77
Caractéristiques orbitales
Époque (JJ 2458200,5)[1]
Établi sur 1 219 observ. couvrant 7659 (U = 0)
Demi-grand axe (a) 383,451 × 106 km[1]
(2,563 21 ua)
Périhélie (q) 305,090 × 106 km[1]
(2,039 40 ua)
Aphélie (Q) 461,811 × 106 km[1]
(3,087 02 ua)
Excentricité (e) 0,20[1]
Période de révolution (Prév) 1 499 j
(4,10 a)
Inclinaison (i) 9,08°[1]
Longitude du nœud ascendant (Ω) 186,78°[1]
Argument du périhélie (ω) 151,7°[1]
Anomalie moyenne (M0) 131,8°[1]
Catégorie Astéroïde de la ceinture principale[1],[2]
Caractéristiques physiques
Dimensions 3,726 km
Magnitude absolue (H) 14,3[1],[2]
Albédo (A) 0,266

Découverte
Date le [1],[2]
Découvert par le projet Lincoln Near-Earth Asteroid Research (LINEAR)[1],[2]
Lieu Socorro, Nouveau-Mexique (États-Unis)[2]
Désignation 1999 JM77
2000 RR7

modifier

(35881) 1999 JM77 est un astéroïde de la ceinture principale d'astéroïdes de 3,726 km de diamètre découvert en 1999.

Description

(35881) 1999 JM77 a été découvert le à l'observatoire Magdalena Ridge, situé dans le comté de Socorro, au Nouveau-Mexique (États-Unis), par le projet Lincoln Near-Earth Asteroid Research (LINEAR).

Caractéristiques orbitales

L'orbite de cet astéroïde est caractérisée par un demi-grand axe de 2,56 ua, un périhélie de 2,04 ua, une excentricité de 0,20 et une inclinaison de 9,08° 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

(35881) 1999 JM77 a une magnitude absolue (H) de 14,3 et un albédo estimé à 0,266, ce qui permet de calculer un diamètre de 3,726 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) « (35881) 1999 JM77 » [html], sur le site du Jet Propulsion Laboratory (consulté le )
  2. ↑ a b c d et e (en) « (35881) 1999 JM77 » [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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