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AstDyS ∴ Objects ∴ 1997WR18 ∴ Summary
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(31163) 1997WR18  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.6006 8.198e-09 au
e 0.141201 3.68e-08
i 2.69 3.744e-06 deg
Ω 99.592 9.447e-05 deg
ω 243.799 9.585e-05 deg
M 158.852 1.583e-05 deg

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Other useful info
Absolute Magnitude (H)    15.5 mag
Slope parameter (G)    0.15 mag
Perihelion 2.2334 au
Aphelion 2.9678 au
Asc. node-Earth separation 1.73499 au
Desc. node-Earth separation 1.38296 au
Earth MOID 1.22691 au
Orbital period 1531.82 days
Date of orbit computation  apr 23 19:52
Observational summary
Optical observations (Discarded) 1402 (7)
Radar observations (Discarded) 0 (0)
Arc length 10626.8 days
Unobserved 44 days

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Ephemeris at epoch 60423 MJD
Right Ascension 134.868 deg
Declination 19.5533 deg
V Magnitude 20.9 mag
Solar Elongation -98.7 deg
Galactic Latitude 36.67 deg
Rate 0.131 deg/day
Direction 109.192 deg

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