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AstDyS ∴ Objects ∴ 1998HN108 ∴ Summary
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(18712) 1998HN108  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.77181 1.078e-08 au
e 0.178118 2.691e-08
i 9.327 2.918e-06 deg
Ω 86.93 2.119e-05 deg
ω 175.96 2.336e-05 deg
M 181.156 1.072e-05 deg

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Other useful info
Absolute Magnitude (H)    13.5 mag
Slope parameter (G)    0.15 mag
Perihelion 2.2781 au
Aphelion 3.2655 au
Asc. node-Earth separation 2.28057 au
Desc. node-Earth separation 1.26286 au
Earth MOID 1.26238 au
Orbital period 1685.56 days
Date of orbit computation  apr 23 19:50
Observational summary
Optical observations (Discarded) 3799 (315)
Radar observations (Discarded) 0 (0)
Arc length 17846.2 days
Unobserved 34 days

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Ephemeris at epoch 60426 MJD
Right Ascension 74.9472 deg
Declination 22.8133 deg
V Magnitude 19.77 mag
Solar Elongation -40.23 deg
Galactic Latitude -11.96 deg
Rate 0.307 deg/day
Direction 80.338 deg

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