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AstDyS ∴ Objects ∴ 1990SW9 ∴ Summary
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(55746) 1990SW9  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.29524 6.36e-09 au
e 0.113084 2.512e-08
i 5.094 2.847e-06 deg
Ω 31.628 3.719e-05 deg
ω 216.722 4.026e-05 deg
M 327.686 1.596e-05 deg

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Other useful info
Absolute Magnitude (H)    15.0 mag
Slope parameter (G)    0.15 mag
Perihelion 2.0357 au
Aphelion 2.5548 au
Asc. node-Earth separation 1.49799 au
Desc. node-Earth separation 1.07248 au
Earth MOID 1.02476 au
Orbital period 1270.1 days
Date of orbit computation  apr 23 19:58
Observational summary
Optical observations (Discarded) 2919 (382)
Radar observations (Discarded) 0 (0)
Arc length 12242.2 days
Unobserved 34 days

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Ephemeris at epoch 60426 MJD
Right Ascension 215.588 deg
Declination -15.1716 deg
V Magnitude 16.92 mag
Solar Elongation 177.45 deg
Galactic Latitude 42.29 deg
Rate 0.254 deg/day
Direction -84.981 deg

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