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AstDyS ∴ Objects ∴ 1990QJ9 ∴ Summary
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(16484) 1990QJ9  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.90913 1.246e-08 au
e 0.019568 3.69e-08
i 2.884 4.741e-06 deg
Ω 47.791 0.0001065 deg
ω 238.549 0.0002182 deg
M 327.897 0.0001921 deg

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Other useful info
Absolute Magnitude (H)    13.8 mag
Slope parameter (G)    0.15 mag
Perihelion 2.8522 au
Aphelion 2.9661 au
Asc. node-Earth separation 1.94845 au
Desc. node-Earth separation 1.86924 au
Earth MOID 1.83697 au
Orbital period 1812.36 days
Date of orbit computation  feb 22 01:53
Observational summary
Optical observations (Discarded) 2130 (20)
Radar observations (Discarded) 0 (0)
Arc length 15166 days
Unobserved 288 days

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Ephemeris at epoch 60397 MJD
Right Ascension 272.993 deg
Declination -24.7324 deg
V Magnitude 19.21 mag
Solar Elongation 94.75 deg
Galactic Latitude -3 deg
Rate 0.188 deg/day
Direction 94.082 deg

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