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AstDyS ∴ Objects ∴ 1999RQ91 ∴ Summary
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(121257) 1999RQ91  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.72344 2.457e-08 au
e 0.136154 5.728e-08
i 12.683 9.703e-06 deg
Ω 4.217 2.466e-05 deg
ω 72.898 4.787e-05 deg
M 23.85 3.956e-05 deg

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Other useful info
Absolute Magnitude (H)    14.9 mag
Slope parameter (G)    0.15 mag
Perihelion 2.3526 au
Aphelion 3.0943 au
Asc. node-Earth separation 1.56775 au
Desc. node-Earth separation 1.78546 au
Earth MOID 1.40233 au
Orbital period 1641.63 days
Date of orbit computation  Oct 31 06:12
Observational summary
Optical observations (Discarded) 562 (4)
Radar observations (Discarded) 0 (0)
Arc length 6718.73 days
Unobserved 369 days

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Ephemeris at epoch 58501 MJD
Right Ascension 156.048 deg
Declination 25.7751 deg
V Magnitude 18.68 mag
Solar Elongation 146.04 deg
Galactic Latitude 57.13 deg
Rate 0.154 deg/day
Direction -68.516 deg

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