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NEODyS ∴ Objects ∴ 1999HD1 ∴ Summary
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(488474) 1999HD1  ▹ 
SUMMARY
Keplerian elements at epoch
57800.0 MJD
Value 1-σ variation Units
a 1.13144 6.293e-09 au
e 0.417818 4.261e-07
i 18.217 4.324e-05 deg
Ω 209.883 2.258e-05 deg
ω 147.951 6.424e-05 deg
M 184.676 8.988e-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 0.44138 au
Desc. node-Earth separation -0.30426 au
Earth MOID 0.21666 au
Orbital period 439.588 days
Date of orbit computation   May 17 20:07
Observational summary
Optical observations (Discarded) 77 (1)
Radar observations (Discarded) 0 (0)
Arc length 6604 days
Unobserved 42 days

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Ephemeris at epoch 57930 MJD
Right Ascension 183.738 deg
Declination 15.4684 deg
V Magnitude 22.06 mag
Solar Elongation -83.03 deg
Galactic Latitude 75.58 deg
Rate 0.272 deg/day
Direction 67.233 deg

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