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AstDyS ∴ Objects ∴ 2008HW9 ∴ Summary
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(257145) 2008HW9  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 3.15557 3.681e-08 au
e 0.170955 5.724e-08
i 1.128 8.373e-06 deg
Ω 34.974 0.0003294 deg
ω 248.109 0.0003302 deg
M 242.536 2.622e-05 deg

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Other useful info
Absolute Magnitude (H)    16.3 mag
Slope parameter (G)    0.15 mag
Perihelion 2.6161 au
Aphelion 3.695 au
Asc. node-Earth separation 2.27781 au
Desc. node-Earth separation 1.87475 au
Earth MOID 1.59972 au
Orbital period 2047.46 days
Date of orbit computation  apr 23 20:44
Observational summary
Optical observations (Discarded) 221 (3)
Radar observations (Discarded) 0 (0)
Arc length 9305.98 days
Unobserved 49 days

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Ephemeris at epoch 60425 MJD
Right Ascension 139.776 deg
Declination 16.7986 deg
V Magnitude 22.31 mag
Solar Elongation -102.03 deg
Galactic Latitude 40.06 deg
Rate 0.078 deg/day
Direction 112.513 deg

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