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AstDyS ∴ Objects ∴ Robertball ∴ Summary
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(4809) Robertball  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.56853 1.026e-08 au
e 0.246497 4.772e-08
i 13.657 4.346e-06 deg
Ω 169.246 1.856e-05 deg
ω 173.563 2.176e-05 deg
M 322.162 1.489e-05 deg

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Other useful info
Absolute Magnitude (H)    12.9 mag
Slope parameter (G)    0.15 mag
Perihelion 1.9354 au
Aphelion 3.2017 au
Asc. node-Earth separation 2.20033 au
Desc. node-Earth separation 0.93121 au
Earth MOID 0.92778 au
Orbital period 1503.58 days
Date of orbit computation  Oct 31 04:58
Observational summary
Optical observations (Discarded) 1792 (10)
Radar observations (Discarded) 0 (0)
Arc length 32911.4 days
Unobserved 33 days

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Ephemeris at epoch 58440 MJD
Right Ascension 278.235 deg
Declination -14.8616 deg
V Magnitude 17.61 mag
Solar Elongation -43.37 deg
Galactic Latitude -2.73 deg
Rate 0.531 deg/day
Direction 93.815 deg

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