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Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 2001KW21 ∴ Orbital info ∴ Epoch epochXXX
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(171843) 2001KW21  ▹ 
ORBITAL INFORMATION
◲
(ASCII data file 171843.eq1)
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.57121 1.489e-08 au
e 0.077929 7.2e-08
i 12.253 4.535e-06 deg
Ω 57.479 2.533e-05 deg
ω 144.426 3.859e-05 deg
M 227.804 3.015e-05 deg
Other useful info
Absolute Magnitude (H)    15.9 mag
Slope parameter (G)    0.15 mag
Perihelion 2.3708 au
Aphelion 2.7716 au
Asc. node-Earth separation 1.74121 au
Desc. node-Earth separation 1.39155 au
Earth MOID 1.3747 au
Orbital period 1505.93 days
Date of orbit computation  apr 23 20:25
Correlation matrix
1.00000000-0.236545910.01286428-0.00091965-0.01855988-0.17224513
-0.236545911.00000000-0.082235030.00265304-0.058880790.24034205
0.01286428-0.082235031.00000000-0.291100610.20528714-0.03467374
-0.000919650.00265304-0.291100611.00000000-0.61733202-0.02770464
-0.01855988-0.058880790.20528714-0.617332021.00000000-0.74303636
-0.172245130.24034205-0.03467374-0.02770464-0.743036361.00000000
Covariance matrix
2.21573688E-16-2.53532035E-168.68375680E-16-3.46754078E-16-1.06618745E-14-7.73110557E-14
-2.53532035E-165.18461601E-15-2.68520996E-144.83885509E-15-1.63618053E-135.21823495E-13
8.68375680E-16-2.68520996E-142.05648810E-11-3.34385585E-113.59272640E-11-4.74132085E-12
-3.46754078E-164.83885509E-15-3.34385585E-116.41627040E-10-6.03475195E-10-2.11606672E-11
-1.06618745E-14-1.63618053E-133.59272640E-11-6.03475195E-101.48935621E-09-8.64659111E-10
-7.73110557E-145.21823495E-13-4.74132085E-12-2.11606672E-11-8.64659111E-109.09224495E-10