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AstDyS ∴ Objects ∴ 1998YB4 ∴ Summary
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(31390) 1998YB4  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.23036 4.899e-09 au
e 0.205679 3.572e-08
i 6.865 3.31e-06 deg
Ω 261.599 2.975e-05 deg
ω 130.203 3.095e-05 deg
M 261.89 7.426e-06 deg

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Other useful info
Absolute Magnitude (H)    15.7 mag
Slope parameter (G)    0.15 mag
Perihelion 1.7716 au
Aphelion 2.6891 au
Asc. node-Earth separation 1.44715 au
Desc. node-Earth separation 0.90215 au
Earth MOID 0.78741 au
Orbital period 1216.64 days
Date of orbit computation  apr 23 19:52
Observational summary
Optical observations (Discarded) 1813 (280)
Radar observations (Discarded) 0 (0)
Arc length 14173.7 days
Unobserved 317 days

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Ephemeris at epoch 60426 MJD
Right Ascension 305.78 deg
Declination -17.0738 deg
V Magnitude 20.32 mag
Solar Elongation 91.91 deg
Galactic Latitude -27.72 deg
Rate 0.292 deg/day
Direction 67.096 deg

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