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Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1999RQ157 ∴ Summary
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(121284) 1999RQ157  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.73435 2.651e-08 au
e 0.23497 7.553e-08
i 13.355 1.078e-05 deg
Ω 357.382 2.693e-05 deg
ω 29.802 3.202e-05 deg
M 49.393 1.761e-05 deg

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Other useful info
Absolute Magnitude (H)    15.3 mag
Slope parameter (G)    0.15 mag
Perihelion 2.0919 au
Aphelion 3.3768 au
Asc. node-Earth separation 1.14156 au
Desc. node-Earth separation 2.24802 au
Earth MOID 1.10455 au
Orbital period 1651.51 days
Date of orbit computation  Oct 31 06:12
Observational summary
Optical observations (Discarded) 383 (5)
Radar observations (Discarded) 0 (0)
Arc length 6699.89 days
Unobserved 371 days

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Ephemeris at epoch 58502 MJD
Right Ascension 139.289 deg
Declination 32.7956 deg
V Magnitude 19.17 mag
Solar Elongation 159.21 deg
Galactic Latitude 43.73 deg
Rate 0.235 deg/day
Direction -78.635 deg

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