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AstDyS ∴ Objects ∴ 1997WH9 ∴ Summary
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(178389) 1997WH9  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.58797 9.977e-09 au
e 0.230214 4.657e-08
i 4.747 7.41e-06 deg
Ω 46.378 5.796e-05 deg
ω 279.827 6.069e-05 deg
M 172.475 1.909e-05 deg

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Other useful info
Absolute Magnitude (H)    16.7 mag
Slope parameter (G)    0.15 mag
Perihelion 1.9922 au
Aphelion 3.1838 au
Asc. node-Earth separation 1.36797 au
Desc. node-Earth separation 1.54236 au
Earth MOID 0.98717 au
Orbital period 1520.68 days
Date of orbit computation  feb 22 02:28
Observational summary
Optical observations (Discarded) 351 (1)
Radar observations (Discarded) 0 (0)
Arc length 9566.02 days
Unobserved 57 days

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Ephemeris at epoch 60398 MJD
Right Ascension 128.507 deg
Declination 24.6886 deg
V Magnitude 22.23 mag
Solar Elongation -116.05 deg
Galactic Latitude 32.72 deg
Rate 0.031 deg/day
Direction -179.055 deg

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