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AstDyS ∴ Objects ∴ Niihama ∴ Summary
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(220736) Niihama  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 3.15955 5.088e-08 au
e 0.241846 5.681e-08
i 25.298 1.03e-05 deg
Ω 84.588 1.963e-05 deg
ω 236.779 3.325e-05 deg
M 231.61 2.457e-05 deg

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Other useful info
Absolute Magnitude (H)    15.1 mag
Slope parameter (G)    0.15 mag
Perihelion 2.3954 au
Aphelion 3.9237 au
Asc. node-Earth separation 2.44427 au
Desc. node-Earth separation 1.6097 au
Earth MOID 1.46426 au
Orbital period 2051.33 days
Date of orbit computation  Dec 20 14:38
Observational summary
Optical observations (Discarded) 309 (0)
Radar observations (Discarded) 0 (0)
Arc length 8823.37 days
Unobserved 412 days

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Ephemeris at epoch 58580 MJD
Right Ascension 213.464 deg
Declination 20.4518 deg
V Magnitude 20.38 mag
Solar Elongation 147.66 deg
Galactic Latitude 70.03 deg
Rate 0.192 deg/day
Direction -69.095 deg

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