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NEODyS ∴ Objects ∴ 2009HD21 ∴ Summary
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2009HD21  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.77119 8.761e-08 au
e 0.687988 2.45e-08
i 18.636 1.812e-05 deg
Ω 179.287 1.812e-05 deg
ω 134.186 1.976e-05 deg
M 353.499 3.435e-05 deg

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Other useful info
Absolute Magnitude (H)    18.2 mag
Slope parameter (G)    0.15 mag
Perihelion 0.8646 au
Aphelion 4.6777 au
Asc. node-Earth separation 1.8066 au
Desc. node-Earth separation -0.01727 au
Earth MOID 0.0116 au
Orbital period 1685 days
Date of orbit computation   Oct 1 18:13
Observational summary
Optical observations (Discarded) 147 (2)
Radar observations (Discarded) 0 (0)
Arc length 3281 days
Unobserved 240 days

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Ephemeris at epoch 58435 MJD
Right Ascension 271.822 deg
Declination -15.7548 deg
V Magnitude 20.34 mag
Solar Elongation -42.05 deg
Galactic Latitude 2.3 deg
Rate 1.338 deg/day
Direction 98.839 deg

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