AstDyS-2

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AstDyS ∴ Objects ∴ 1998HQ18 ∴ Summary
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(39984) 1998HQ18  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.43133 7.243e-09 au
e 0.062025 3.446e-08
i 4.799 4.479e-06 deg
Ω 223.542 4.133e-05 deg
ω 36.714 5.487e-05 deg
M 246.055 3.579e-05 deg

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Other useful info
Absolute Magnitude (H)    15.4 mag
Slope parameter (G)    0.15 mag
Perihelion 2.2805 au
Aphelion 2.5821 au
Asc. node-Earth separation 1.29881 au
Desc. node-Earth separation 1.55825 au
Earth MOID 1.26736 au
Orbital period 1384.73 days
Date of orbit computation  feb 22 01:58
Observational summary
Optical observations (Discarded) 1588 (10)
Radar observations (Discarded) 0 (0)
Arc length 10436.2 days
Unobserved 91 days

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Ephemeris at epoch 60420 MJD
Right Ascension 122.152 deg
Declination 14.8514 deg
V Magnitude 20.31 mag
Solar Elongation -91.02 deg
Galactic Latitude 23.65 deg
Rate 0.231 deg/day
Direction 93.887 deg

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