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AstDyS ∴ Objects ∴ Roadrunner ∴ Summary
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(16421) Roadrunner  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 1.9307 8.202e-09 au
e 0.06376 6.144e-08
i 22.826 6.432e-06 deg
Ω 309.78 1.357e-05 deg
ω 234.188 4.34e-05 deg
M 105.121 4.436e-05 deg

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Other useful info
Absolute Magnitude (H)    14.4 mag
Slope parameter (G)    0.15 mag
Perihelion 1.8076 au
Aphelion 2.0538 au
Asc. node-Earth separation 0.98198 au
Desc. node-Earth separation 0.86737 au
Earth MOID 0.85437 au
Orbital period 979.872 days
Date of orbit computation  Oct 31 05:06
Observational summary
Optical observations (Discarded) 932 (4)
Radar observations (Discarded) 0 (0)
Arc length 11153.7 days
Unobserved 201 days

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Ephemeris at epoch 58537 MJD
Right Ascension 336.701 deg
Declination -1.0061 deg
V Magnitude 18.73 mag
Solar Elongation -9.16 deg
Galactic Latitude -46.59 deg
Rate 0.542 deg/day
Direction 60.775 deg

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