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AstDyS ∴ Objects ∴ 1999UB21 ∴ Summary
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(251854) 1999UB21  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 3.03145 2.785e-08 au
e 0.083493 5.366e-08
i 6.632 6.704e-06 deg
Ω 178.019 4.102e-05 deg
ω 58.317 5.672e-05 deg
M 3.737 4.229e-05 deg

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Other useful info
Absolute Magnitude (H)    16.1 mag
Slope parameter (G)    0.15 mag
Perihelion 2.7783 au
Aphelion 3.2846 au
Asc. node-Earth separation 1.88853 au
Desc. node-Earth separation 2.14493 au
Earth MOID 1.77456 au
Orbital period 1927.86 days
Date of orbit computation  apr 23 20:42
Observational summary
Optical observations (Discarded) 358 (1)
Radar observations (Discarded) 0 (0)
Arc length 8549 days
Unobserved 393 days

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Ephemeris at epoch 60426 MJD
Right Ascension 261.246 deg
Declination -14.5342 deg
V Magnitude 20.61 mag
Solar Elongation 133.86 deg
Galactic Latitude 11.71 deg
Rate 0.069 deg/day
Direction -34.084 deg

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