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AstDyS ∴ Objects ∴ 1999HD1 ∴ Summary
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(488474) 1999HD1  ▹ 
SUMMARY

Warning: This object is a Near Earth Asteroid. You can have more detailed information looking at
its home page on the NEODyS web site

Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 1.13143 4.216e-09 au
e 0.417775 3.988e-07
i 18.219 3.26e-05 deg
Ω 209.861 1.93e-05 deg
ω 147.966 5.069e-05 deg
M 154.144 7.759e-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 1.6041 au
Asc. node-Earth separation 0.44139 au
Desc. node-Earth separation -0.30443 au
Earth MOID 0.2166 au
Orbital period 439.584 days
Date of orbit computation  feb 22 03:33
Observational summary
Optical observations (Discarded) 99 (1)
Radar observations (Discarded) 0 (0)
Arc length 8771.92 days
Unobserved 340 days

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Ephemeris at epoch 60398 MJD
Right Ascension 130.525 deg
Declination -8.60579 deg
V Magnitude 22.21 mag
Solar Elongation -122.87 deg
Galactic Latitude 19.9 deg
Rate 0.449 deg/day
Direction 9.782 deg

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