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AstDyS ∴ Objects ∴ 1998RY31 ∴ Summary
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(239822) 1998RY31  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.80662 1.627e-08 au
e 0.203178 4.885e-08
i 12.181 6.741e-06 deg
Ω 332.198 2.565e-05 deg
ω 82.933 3.186e-05 deg
M 111.997 1.853e-05 deg

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Other useful info
Absolute Magnitude (H)    16.0 mag
Slope parameter (G)    0.15 mag
Perihelion 2.2364 au
Aphelion 3.3769 au
Asc. node-Earth separation 1.61472 au
Desc. node-Earth separation 1.77118 au
Earth MOID 1.28632 au
Orbital period 1717.41 days
Date of orbit computation  feb 22 02:41
Observational summary
Optical observations (Discarded) 392 (2)
Radar observations (Discarded) 0 (0)
Arc length 9254.26 days
Unobserved 72 days

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Ephemeris at epoch 60397 MJD
Right Ascension 180.011 deg
Declination -10.8076 deg
V Magnitude 20.44 mag
Solar Elongation -169.62 deg
Galactic Latitude 50.07 deg
Rate 0.227 deg/day
Direction -76.039 deg

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