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AstDyS ∴ Objects ∴ 1998HD3 ∴ Summary
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(31321) 1998HD3  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 3.20811 1.486e-08 au
e 0.079608 3.589e-08
i 5.887 3.522e-06 deg
Ω 38.247 3.724e-05 deg
ω 132.166 4.369e-05 deg
M 234.667 2.253e-05 deg

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Other useful info
Absolute Magnitude (H)    14.2 mag
Slope parameter (G)    0.15 mag
Perihelion 2.9527 au
Aphelion 3.4635 au
Asc. node-Earth separation 2.37598 au
Desc. node-Earth separation 2.019 au
Earth MOID 1.96242 au
Orbital period 2098.81 days
Date of orbit computation  feb 22 01:56
Observational summary
Optical observations (Discarded) 2216 (401)
Radar observations (Discarded) 0 (0)
Arc length 23113.1 days
Unobserved 59 days

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Ephemeris at epoch 60397 MJD
Right Ascension 28.7401 deg
Declination 11.7189 deg
V Magnitude 20.5 mag
Solar Elongation -23.38 deg
Galactic Latitude -48.21 deg
Rate 0.331 deg/day
Direction 67.405 deg

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