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AstDyS ∴ Objects ∴ Roehla ∴ Summary
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(1557) Roehla  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 3.01098 1.329e-08 au
e 0.104298 4.325e-08
i 10.299 5.161e-06 deg
Ω 355.214 2.202e-05 deg
ω 3.567 2.879e-05 deg
M 2.936 1.927e-05 deg

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Other useful info
Absolute Magnitude (H)    11.5 mag
Slope parameter (G)    0.15 mag
Perihelion 2.6969 au
Aphelion 3.325 au
Asc. node-Earth separation 1.69251 au
Desc. node-Earth separation 2.32787 au
Earth MOID 1.69243 au
Orbital period 1908.36 days
Date of orbit computation  Oct 31 04:55
Observational summary
Optical observations (Discarded) 2009 (29)
Radar observations (Discarded) 0 (0)
Arc length 42031.1 days
Unobserved 158 days

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Ephemeris at epoch 58568 MJD
Right Ascension 27.0224 deg
Declination 17.1556 deg
V Magnitude 17.11 mag
Solar Elongation -26.97 deg
Galactic Latitude -43.63 deg
Rate 0.411 deg/day
Direction 67.456 deg

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