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AstDyS ∴ Objects ∴ 1999XR221 ∴ Summary
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(47451) 1999XR221  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.2105 6.77e-09 au
e 0.117305 3.917e-08
i 6.538 3.236e-06 deg
Ω 49.108 3.828e-05 deg
ω 337.946 4.302e-05 deg
M 182.177 2.001e-05 deg

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Other useful info
Absolute Magnitude (H)    15.8 mag
Slope parameter (G)    0.15 mag
Perihelion 1.9512 au
Aphelion 2.4698 au
Asc. node-Earth separation 0.97707 au
Desc. node-Earth separation 1.43631 au
Earth MOID 0.95797 au
Orbital period 1200.42 days
Date of orbit computation  apr 23 19:56
Observational summary
Optical observations (Discarded) 1573 (183)
Radar observations (Discarded) 0 (0)
Arc length 10959.4 days
Unobserved 69 days

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Ephemeris at epoch 60426 MJD
Right Ascension 213.154 deg
Declination -10.4913 deg
V Magnitude 18.78 mag
Solar Elongation -176.96 deg
Galactic Latitude 47.54 deg
Rate 0.272 deg/day
Direction -79.944 deg

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