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AstDyS ∴ Objects ∴ 1997WH18 ∴ Summary
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(58640) 1997WH18  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.40655 8.836e-09 au
e 0.093549 3.486e-08
i 7.15 4.147e-06 deg
Ω 19.543 3.101e-05 deg
ω 263.058 3.949e-05 deg
M 139.203 2.56e-05 deg

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Other useful info
Absolute Magnitude (H)    15.3 mag
Slope parameter (G)    0.15 mag
Perihelion 2.1814 au
Aphelion 2.6317 au
Asc. node-Earth separation 1.41561 au
Desc. node-Earth separation 1.35722 au
Earth MOID 1.17922 au
Orbital period 1363.61 days
Date of orbit computation  feb 22 02:02
Observational summary
Optical observations (Discarded) 1466 (3)
Radar observations (Discarded) 0 (0)
Arc length 11603.9 days
Unobserved 97 days

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Ephemeris at epoch 60419 MJD
Right Ascension 57.4405 deg
Declination 24.5335 deg
V Magnitude 20.74 mag
Solar Elongation -31.76 deg
Galactic Latitude -22.79 deg
Rate 0.414 deg/day
Direction 77.036 deg

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