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NEODyS ∴ Objects ∴ 1999HD1 ∴ Summary
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(488474) 1999HD1  ▹ 
SUMMARY
Keplerian elements at epoch
58200.0 MJD
Value 1-σ variation Units
a 1.13136 3.907e-09 au
e 0.417783 2.579e-07
i 18.218 2.566e-05 deg
Ω 209.88 1.415e-05 deg
ω 147.951 4.436e-05 deg
M 152.273 6.443e-05 deg

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Other useful info
Absolute Magnitude (H)    20.4 mag
Slope parameter (G)    0.15 mag
Perihelion 0.6587 au
Aphelion 1.604 au
Asc. node-Earth separation 0.4414 au
Desc. node-Earth separation -0.30597 au
Earth MOID 0.21662 au
Orbital period 439.541 days
Date of orbit computation   Feb 5 17:27
Observational summary
Optical observations (Discarded) 77 (7)
Radar observations (Discarded) 0 (0)
Arc length 6604 days
Unobserved 286 days

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Ephemeris at epoch 58174 MJD
Right Ascension 143.077 deg
Declination -27.1894 deg
V Magnitude 21.38 mag
Solar Elongation 140.82 deg
Galactic Latitude 17.63 deg
Rate 0.672 deg/day
Direction -42.477 deg

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