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AstDyS ∴ Objects ∴ 1990RN9 ∴ Summary
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(18355) 1990RN9  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.65045 1.031e-08 au
e 0.246138 3.594e-08
i 10.91 4.314e-06 deg
Ω 304.454 1.962e-05 deg
ω 73.491 2.173e-05 deg
M 258.818 9.337e-06 deg

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Other useful info
Absolute Magnitude (H)    14.0 mag
Slope parameter (G)    0.15 mag
Perihelion 1.9981 au
Aphelion 3.3028 au
Asc. node-Earth separation 1.31163 au
Desc. node-Earth separation 1.69341 au
Earth MOID 1.03103 au
Orbital period 1576.08 days
Date of orbit computation  apr 23 19:49
Observational summary
Optical observations (Discarded) 2338 (114)
Radar observations (Discarded) 0 (0)
Arc length 17134.9 days
Unobserved 335 days

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Ephemeris at epoch 60425 MJD
Right Ascension 275.325 deg
Declination -33.8347 deg
V Magnitude 18.96 mag
Solar Elongation 119.89 deg
Galactic Latitude -9.03 deg
Rate 0.04 deg/day
Direction 129.864 deg

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