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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 6.217e-09 au
e 0.417783 4.261e-07
i 18.218 4.324e-05 deg
Ω 209.88 2.257e-05 deg
ω 147.951 6.427e-05 deg
M 152.273 9.155e-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   Mar 13 15:21
Observational summary
Optical observations (Discarded) 77 (1)
Radar observations (Discarded) 0 (0)
Arc length 6604 days
Unobserved 402 days

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Ephemeris at epoch 58290 MJD
Right Ascension 160.91 deg
Declination 4.47719 deg
V Magnitude 23.77 mag
Solar Elongation -71.37 deg
Galactic Latitude 52.04 deg
Rate 0.471 deg/day
Direction 93.674 deg

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