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AstDyS ∴ Objects ∴ 1998HC146 ∴ Summary
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(18721) 1998HC146  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 3.21662 1.574e-08 au
e 0.055177 2.984e-08
i 7.225 3.397e-06 deg
Ω 105.716 2.875e-05 deg
ω 158.655 4.59e-05 deg
M 143.742 3.498e-05 deg

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Other useful info
Absolute Magnitude (H)    13.7 mag
Slope parameter (G)    0.15 mag
Perihelion 3.0391 au
Aphelion 3.3941 au
Asc. node-Earth separation 2.39791 au
Desc. node-Earth separation 2.03341 au
Earth MOID 2.02439 au
Orbital period 2107.16 days
Date of orbit computation  feb 22 01:54
Observational summary
Optical observations (Discarded) 2339 (175)
Radar observations (Discarded) 0 (0)
Arc length 9828.82 days
Unobserved 94 days

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Ephemeris at epoch 60419 MJD
Right Ascension 47.766 deg
Declination 13.2238 deg
V Magnitude 20 mag
Solar Elongation -20.35 deg
Galactic Latitude -37.32 deg
Rate 0.336 deg/day
Direction 71.904 deg

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