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AstDyS ∴ Objects ∴ 1999RY221 ∴ Summary
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(331495) 1999RY221  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.21065 7.449e-09 au
e 0.259511 5.134e-08
i 4.231 3.858e-06 deg
Ω 278.729 8.368e-05 deg
ω 53.595 8.447e-05 deg
M 184.487 1.024e-05 deg

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Other useful info
Absolute Magnitude (H)    17.5 mag
Slope parameter (G)    0.15 mag
Perihelion 1.637 au
Aphelion 2.7843 au
Asc. node-Earth separation 0.76964 au
Desc. node-Earth separation 1.45504 au
Earth MOID 0.63064 au
Orbital period 1200.55 days
Date of orbit computation  feb 22 03:00
Observational summary
Optical observations (Discarded) 613 (1)
Radar observations (Discarded) 0 (0)
Arc length 8529.74 days
Unobserved 458 days

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Ephemeris at epoch 60416 MJD
Right Ascension 139.36 deg
Declination 11.0374 deg
V Magnitude 22.45 mag
Solar Elongation -112.1 deg
Galactic Latitude 37.37 deg
Rate 0.043 deg/day
Direction 84.175 deg

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