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NEODyS ∴ Objects ∴ 2009HD21 ∴ Summary
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2009HD21  ▹ 
SUMMARY
Keplerian elements at epoch
58200.0 MJD
Value 1-σ variation Units
a 2.77095 1.283e-07 au
e 0.688047 2.762e-08
i 18.639 1.826e-05 deg
Ω 179.29 1.85e-05 deg
ω 134.196 2.006e-05 deg
M 310.763 4.791e-05 deg

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Other useful info
Absolute Magnitude (H)    18.2 mag
Slope parameter (G)    0.15 mag
Perihelion 0.8644 au
Aphelion 4.6775 au
Asc. node-Earth separation 1.8083 au
Desc. node-Earth separation -0.01812 au
Earth MOID 0.01219 au
Orbital period 1684.77 days
Date of orbit computation   Mar 19 14:04
Observational summary
Optical observations (Discarded) 147 (2)
Radar observations (Discarded) 0 (0)
Arc length 3281 days
Unobserved 187 days

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Ephemeris at epoch 58382 MJD
Right Ascension 215.845 deg
Declination -2.34006 deg
V Magnitude 21.07 mag
Solar Elongation -38.07 deg
Galactic Latitude 53.13 deg
Rate 0.8 deg/day
Direction 107.045 deg

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