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NEODyS ∴ Objects ∴ 2009HD21 ∴ Summary
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2009HD21  ▹ 
SUMMARY
Keplerian elements at epoch
58000.0 MJD
Value 1-σ variation Units
a 2.77001 2.618e-07 au
e 0.688155 3.716e-08
i 18.644 1.195e-05 deg
Ω 179.288 1.234e-05 deg
ω 134.225 1.28e-05 deg
M 267.982 9.119e-05 deg

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Other useful info
Absolute Magnitude (H)    18.2 mag
Slope parameter (G)    0.15 mag
Perihelion 0.8638 au
Aphelion 4.6762 au
Asc. node-Earth separation 1.80992 au
Desc. node-Earth separation -0.01823 au
Earth MOID 0.01225 au
Orbital period 1683.92 days
Date of orbit computation   Oct 9 19:27
Observational summary
Optical observations (Discarded) 137 (5)
Radar observations (Discarded) 0 (0)
Arc length 2093 days
Unobserved 1040 days

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Ephemeris at epoch 58047 MJD
Right Ascension 171.713 deg
Declination -1.04594 deg
V Magnitude 24.87 mag
Solar Elongation 34.97 deg
Galactic Latitude 55.24 deg
Rate 0.262 deg/day
Direction 109.961 deg

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