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Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1991RL18 ∴ Orbital info ∴ Epoch epochXXX
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(42489) 1991RL18  ▹ 
ORBITAL INFORMATION
◲
(ASCII data file 42489.eq0)
Keplerian elements at epoch
57629.7 MJD
Value 1-σ variation Units
a 2.59857 1.215e-08 au
e 0.185911 3.369e-08
i 12.749 4.178e-06 deg
Ω 179.696 1.51e-05 deg
ω 222.883 1.959e-05 deg
M 309.091 1.312e-05 deg
Other useful info
Absolute Magnitude (H)    14.6 mag
Slope parameter (G)    0.15 mag
Perihelion 2.1155 au
Aphelion 3.0817 au
Asc. node-Earth separation 1.9072 au
Desc. node-Earth separation 1.20424 au
Earth MOID 1.13905 au
Orbital period 1530.03 days
Date of orbit computation  apr 23 19:55
Correlation matrix
1.00000000-0.353529140.012863680.001558870.19949937-0.34473831
-0.353529141.00000000-0.00150009-0.00367514-0.219261340.40020949
0.01286368-0.001500091.00000000-0.180796930.14454011-0.01253471
0.00155887-0.00367514-0.180796931.00000000-0.75203523-0.00000941
0.19949937-0.219261340.14454011-0.752035231.00000000-0.64323972
-0.344738310.40020949-0.01253471-0.00000941-0.643239721.00000000
Covariance matrix
1.47617457E-16-1.44729824E-166.52966062E-162.86038965E-164.74858520E-14-5.49693998E-14
-1.44729824E-161.13534519E-15-2.11172694E-16-1.87018690E-15-1.44737107E-131.76975818E-13
6.52966062E-16-2.11172694E-161.74547303E-11-1.14076133E-111.18303830E-11-6.87279674E-13
2.86038965E-16-1.87018690E-15-1.14076133E-112.28083742E-10-2.22504709E-10-1.86559471E-15
4.74858520E-14-1.44737107E-131.18303830E-11-2.22504709E-103.83802419E-10-1.65382401E-10
-5.49693998E-141.76975818E-13-6.87279674E-13-1.86559471E-15-1.65382401E-101.72236490E-10