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AstDyS ∴ Objects ∴ 2007WD21 ∴ Summary
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(216338) 2007WD21  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.54254 1.263e-08 au
e 0.019442 3.743e-08
i 7.577 4.856e-06 deg
Ω 139.492 3.079e-05 deg
ω 274.962 0.0001378 deg
M 76.428 0.0001345 deg

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Other useful info
Absolute Magnitude (H)    16.8 mag
Slope parameter (G)    0.15 mag
Perihelion 2.4931 au
Aphelion 2.592 au
Asc. node-Earth separation 1.55121 au
Desc. node-Earth separation 1.53284 au
Earth MOID 1.51518 au
Orbital period 1480.81 days
Date of orbit computation  apr 23 20:35
Observational summary
Optical observations (Discarded) 523 (7)
Radar observations (Discarded) 0 (0)
Arc length 7800.91 days
Unobserved days

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Ephemeris at epoch MJD
Right Ascension deg
Declination deg
V Magnitude mag
Solar Elongation deg
Galactic Latitude deg
Rate deg/day
Direction deg

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