NEODyS-2
Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1990UN ∴ Orbital info ∴ Epoch 60400 MJD
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1990UN  ▹ 
ORBITAL INFORMATION
◲
(ASCII data file 1990UN.eq1)
Keplerian elements
(Epoch 60400.0 MJD)
Value 1-σ variation Units
a 1.70969 0.005791 au
e 0.527859 0.00266
i 3.669 0.02336 deg
Ω 7.746 0.5255 deg
ω 97.817 0.2042 deg
M 316.875 94.11 deg
Other useful info
Absolute Magnitude (H)    23.5 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.8072 au
Aphelion distance 2.6122 au
Asc. node-Earth separation 0.32829 au
Desc. node-Earth separation 0.15241 au
Earth MOID 0.02099 au
Orbital period 816.538 days
Date of orbit computation   feb 26 10:21

Covariance matrix
3.35339246E-051.54008670E-051.35222181E-04-3.04309492E-03-1.18221866E-03-5.44999369E-01
1.54008670E-057.07305650E-066.21049306E-05-1.39756568E-03-5.42956266E-04-2.50297653E-01
1.35222181E-046.21049306E-055.45644355E-04-1.22689522E-02-4.76851333E-03-2.19765443E+00
-3.04309492E-03-1.39756568E-03-1.22689522E-022.76162064E-011.07275058E-014.94569297E+01
-1.18221866E-03-5.42956266E-04-4.76851333E-031.07275058E-014.16837005E-021.92136277E+01
-5.44999369E-01-2.50297653E-01-2.19765443E+004.94569297E+011.92136277E+018.85742771E+03

Correlation matrix
1.000000000.999998650.99965677-0.99997996-0.99993664-1.00000000
0.999998651.000000000.99969538-0.99996927-0.99994970-0.99999863
0.999656770.999695381.00000000-0.99947200-0.99987345-0.99965642
-0.99997996-0.99996927-0.999472001.000000000.999847150.99998004
-0.99993664-0.99994970-0.999873450.999847151.000000000.99993652
-1.00000000-0.99999863-0.999656420.999980040.999936521.00000000