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(488474) 1999HD1  ▹ 
SUMMARY
Keplerian elements
(Epoch 60400.0 MJD)
Value 1-σ variation Units
a 1.13143 2.693e-09 au
e 0.417775 1.234e-07
i 18.219 1.128e-05 deg
Ω 209.861 1.482e-05 deg
ω 147.966 2.758e-05 deg
M 154.144 4.12e-05 deg

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Other useful info
Absolute Magnitude (H)    20.4 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.6587 au
Aphelion distance 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   mar 17 13:38
Observational summary
Optical observations (Discarded) 105 (6)
Radar observations (Discarded) 0 (0)
Arc length 9102 days
Unobserved 39 days

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Ephemeris
(Epoch 60425 MJD)
Right Ascension 136.056 deg
Declination 0.24572 deg
V Magnitude 22.99 mag
Solar Elongation -102.97 deg
Galactic Latitude 29.29 deg
Rate 0.377 deg/day
Direction 53.977 deg

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