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NEODyS ∴ Objects ∴ 1999HD1 ∴ Summary
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(488474) 1999HD1  ▹ 
SUMMARY
Keplerian elements at epoch
58000.0 MJD
Value 1-σ variation Units
a 1.13142 3.832e-09 au
e 0.417817 2.579e-07
i 18.218 2.566e-05 deg
Ω 209.882 1.415e-05 deg
ω 147.958 4.435e-05 deg
M 348.459 6.389e-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 1.6042 au
Asc. node-Earth separation 0.44264 au
Desc. node-Earth separation -0.30481 au
Earth MOID 0.21686 au
Orbital period 439.578 days
Date of orbit computation   Oct 9 22:29
Observational summary
Optical observations (Discarded) 77 (7)
Radar observations (Discarded) 0 (0)
Arc length 6604 days
Unobserved 157 days

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Ephemeris at epoch 58045 MJD
Right Ascension 153.367 deg
Declination -2.21388 deg
V Magnitude 21.98 mag
Solar Elongation 50.57 deg
Galactic Latitude 41.97 deg
Rate 0.622 deg/day
Direction 177.534 deg

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