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AstDyS ∴ Objects ∴ 1999WS9 ∴ Summary
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(21967) 1999WS9  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.68245 9.543e-09 au
e 0.081626 2.657e-08
i 10.358 3.159e-06 deg
Ω 81.396 1.901e-05 deg
ω 209.376 2.993e-05 deg
M 351.262 2.351e-05 deg

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Other useful info
Absolute Magnitude (H)    12.4 mag
Slope parameter (G)    0.15 mag
Perihelion 2.4635 au
Aphelion 2.9014 au
Asc. node-Earth separation 1.88488 au
Desc. node-Earth separation 1.47211 au
Earth MOID 1.45225 au
Orbital period 1604.71 days
Date of orbit computation  feb 22 01:54
Observational summary
Optical observations (Discarded) 3822 (16)
Radar observations (Discarded) 0 (0)
Arc length 14761.2 days
Unobserved 249 days

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Ephemeris at epoch 60418 MJD
Right Ascension 312.168 deg
Declination -22.181 deg
V Magnitude 17.43 mag
Solar Elongation 79.59 deg
Galactic Latitude -35.14 deg
Rate 0.329 deg/day
Direction 85.9 deg

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