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Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 2001RP21 ∴ Orbital info ∴ Epoch epochXXX
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(173744) 2001RP21  ▹ 
ORBITAL INFORMATION
◲
(ASCII data file 173744.eq0)
Keplerian elements at epoch
57611.7 MJD
Value 1-σ variation Units
a 2.69267 1.573e-08 au
e 0.200241 5.11e-08
i 7.989 7.038e-06 deg
Ω 156.94 4.236e-05 deg
ω 138.015 4.638e-05 deg
M 166.167 1.936e-05 deg
Other useful info
Absolute Magnitude (H)    16.4 mag
Slope parameter (G)    0.15 mag
Perihelion 2.1535 au
Aphelion 3.2319 au
Asc. node-Earth separation 2.04694 au
Desc. node-Earth separation 1.24032 au
Earth MOID 1.14505 au
Orbital period 1613.88 days
Date of orbit computation  apr 23 20:26
Correlation matrix
1.000000000.026412690.00344413-0.001425370.01333692-0.03414322
0.026412691.00000000-0.011072150.001456170.08644844-0.23667123
0.00344413-0.011072151.000000000.25297139-0.233263700.01344449
-0.001425370.001456170.252971391.00000000-0.90368045-0.00510117
0.013336920.08644844-0.23326370-0.903680451.00000000-0.41126347
-0.03414322-0.236671230.01344449-0.00510117-0.411263471.00000000
Covariance matrix
2.47369860E-162.12287568E-173.81267917E-16-9.49637651E-169.72810972E-15-1.03956024E-14
2.12287568E-172.61142143E-15-3.98243332E-153.15215209E-152.04877903E-13-2.34129259E-13
3.81267917E-16-3.98243332E-154.95399878E-117.54234599E-11-7.61420574E-111.83186752E-12
-9.49637651E-163.15215209E-157.54234599E-111.79437910E-09-1.77529891E-09-4.18310504E-12
9.72810972E-152.04877903E-13-7.61420574E-11-1.77529891E-092.15079490E-09-3.69225244E-10
-1.03956024E-14-2.34129259E-131.83186752E-12-4.18310504E-12-3.69225244E-103.74751598E-10