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AstDyS ∴ Objects ∴ Roberta ∴ Summary
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(335) Roberta  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.47519 5.693e-09 au
e 0.172623 3.031e-08
i 5.101 3.203e-06 deg
Ω 148.44 4.52e-05 deg
ω 140.042 4.641e-05 deg
M 197.844 1.103e-05 deg

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Other useful info
Absolute Magnitude (H)    9.1 mag
Slope parameter (G)    0.15 mag
Perihelion 2.0479 au
Aphelion 2.9025 au
Asc. node-Earth separation 1.77811 au
Desc. node-Earth separation 1.10887 au
Earth MOID 1.03367 au
Orbital period 1422.37 days
Date of orbit computation  Oct 31 04:54
Observational summary
Optical observations (Discarded) 2848 (127)
Radar observations (Discarded) 0 (0)
Arc length 46066.6 days
Unobserved 91 days

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Ephemeris at epoch 58501 MJD
Right Ascension 153.245 deg
Declination 9.91903 deg
V Magnitude 13.5 mag
Solar Elongation 145.7 deg
Galactic Latitude 48.93 deg
Rate 0.147 deg/day
Direction -61.374 deg

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