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Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ Yerkes ∴ Summary
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(990) Yerkes  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.66883 8.947e-09 au
e 0.217239 4.381e-08
i 8.785 5.299e-06 deg
Ω 353.955 2.398e-05 deg
ω 9.618 2.54e-05 deg
M 37.615 1.029e-05 deg

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Other useful info
Absolute Magnitude (H)    11.8 mag
Slope parameter (G)    0.15 mag
Perihelion 2.0891 au
Aphelion 3.2486 au
Asc. node-Earth separation 1.08903 au
Desc. node-Earth separation 2.23993 au
Earth MOID 1.08639 au
Orbital period 1592.5 days
Date of orbit computation  Oct 8 21:12
Observational summary
Optical observations (Discarded) 1899 (27)
Radar observations (Discarded) 0 (0)
Arc length 38315.5 days
Unobserved 26 days

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Ephemeris at epoch 58407 MJD
Right Ascension 84.1449 deg
Declination 34.627 deg
V Magnitude 15.78 mag
Solar Elongation 116.67 deg
Galactic Latitude 1.38 deg
Rate 0.118 deg/day
Direction 36.376 deg

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