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AstDyS ∴ Objects ∴ 1999XW171 ∴ Summary
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(25557) 1999XW171  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.57537 1.065e-08 au
e 0.1979 3.862e-08
i 13.629 3.28e-06 deg
Ω 75.675 1.708e-05 deg
ω 294.276 1.873e-05 deg
M 21.964 9.667e-06 deg

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Other useful info
Absolute Magnitude (H)    14.2 mag
Slope parameter (G)    0.15 mag
Perihelion 2.0657 au
Aphelion 3.085 au
Asc. node-Earth separation 1.30386 au
Desc. node-Earth separation 1.67897 au
Earth MOID 1.10913 au
Orbital period 1509.59 days
Date of orbit computation  apr 23 19:51
Observational summary
Optical observations (Discarded) 2418 (6)
Radar observations (Discarded) 0 (0)
Arc length 15128.5 days
Unobserved 92 days

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Ephemeris at epoch 60426 MJD
Right Ascension 45.6783 deg
Declination 13.2855 deg
V Magnitude 18.75 mag
Solar Elongation -11.74 deg
Galactic Latitude -38.55 deg
Rate 0.534 deg/day
Direction 68.268 deg

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