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AstDyS ∴ Objects ∴ 1990SG ∴ Summary
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(16489) 1990SG  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 3.18357 2.042e-08 au
e 0.10791 2.761e-08
i 20.327 3.081e-06 deg
Ω 69.978 1.009e-05 deg
ω 303.96 1.896e-05 deg
M 306.189 1.637e-05 deg

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Other useful info
Absolute Magnitude (H)    13.3 mag
Slope parameter (G)    0.15 mag
Perihelion 2.84 au
Aphelion 3.5271 au
Asc. node-Earth separation 1.98243 au
Desc. node-Earth separation 2.33438 au
Earth MOID 1.89526 au
Orbital period 2074.77 days
Date of orbit computation  apr 23 19:49
Observational summary
Optical observations (Discarded) 3154 (361)
Radar observations (Discarded) 0 (0)
Arc length 25708.6 days
Unobserved 262 days

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Ephemeris at epoch 60425 MJD
Right Ascension 339.83 deg
Declination -26.4295 deg
V Magnitude 19.16 mag
Solar Elongation 64.83 deg
Galactic Latitude -60.59 deg
Rate 0.325 deg/day
Direction 82.742 deg

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