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AstDyS ∴ Objects ∴ Niihama ∴ Summary
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(220736) Niihama  ▹ 
SUMMARY
Keplerian elements at epoch
58800.0 MJD
Value 1-σ variation Units
a 3.16185 4.7e-08 au
e 0.241918 5.537e-08
i 25.298 8.742e-06 deg
Ω 84.587 1.952e-05 deg
ω 236.606 3.018e-05 deg
M 301.981 2.417e-05 deg

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Other useful info
Absolute Magnitude (H)    15.1 mag
Slope parameter (G)    0.15 mag
Perihelion 2.3969 au
Aphelion 3.9268 au
Asc. node-Earth separation 2.45001 au
Desc. node-Earth separation 1.61286 au
Earth MOID 1.46703 au
Orbital period 2053.57 days
Date of orbit computation  Nov 28 17:49
Observational summary
Optical observations (Discarded) 366 (0)
Radar observations (Discarded) 0 (0)
Arc length 9304.2 days
Unobserved 162 days

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Ephemeris at epoch 58828 MJD
Right Ascension 247.087 deg
Declination -14.6135 deg
V Magnitude 20.66 mag
Solar Elongation 12.77 deg
Galactic Latitude 22.85 deg
Rate 0.408 deg/day
Direction 107.322 deg

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