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(20638) Lingchen  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.72994 1.155e-08 au
e 0.064362 3.581e-08
i 4.157 3.839e-06 deg
Ω 245.67 5.305e-05 deg
ω 89.649 6.133e-05 deg
M 179.587 3.037e-05 deg

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Other useful info
Absolute Magnitude (H)    14.1 mag
Slope parameter (G)    0.15 mag
Perihelion 2.5542 au
Aphelion 2.9056 au
Asc. node-Earth separation 1.70409 au
Desc. node-Earth separation 1.73405 au
Earth MOID 1.54834 au
Orbital period 1647.51 days
Date of orbit computation  feb 22 01:54
Observational summary
Optical observations (Discarded) 2307 (15)
Radar observations (Discarded) 0 (0)
Arc length 11247 days
Unobserved 56 days

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Ephemeris at epoch 60397 MJD
Right Ascension 140.193 deg
Declination 9.58901 deg
V Magnitude 18.92 mag
Solar Elongation -131.85 deg
Galactic Latitude 37.46 deg
Rate 0.067 deg/day
Direction -49.358 deg

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