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AstDyS ∴ Objects ∴ 1999XL221 ∴ Summary
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(137779) 1999XL221  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.31859 7.124e-09 au
e 0.165106 4.57e-08
i 4.977 4.541e-06 deg
Ω 347.058 4.551e-05 deg
ω 54.762 4.745e-05 deg
M 338.637 1.207e-05 deg

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Other useful info
Absolute Magnitude (H)    16.5 mag
Slope parameter (G)    0.15 mag
Perihelion 1.9358 au
Aphelion 2.7014 au
Asc. node-Earth separation 1.05263 au
Desc. node-Earth separation 1.50061 au
Earth MOID 0.94894 au
Orbital period 1289.54 days
Date of orbit computation  feb 22 02:19
Observational summary
Optical observations (Discarded) 837 (5)
Radar observations (Discarded) 0 (0)
Arc length 8647.15 days
Unobserved 305 days

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Ephemeris at epoch 60419 MJD
Right Ascension 20.1723 deg
Declination 10.3965 deg
V Magnitude 20.66 mag
Solar Elongation 6.8 deg
Galactic Latitude -51.81 deg
Rate 0.587 deg/day
Direction 66.198 deg

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