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AstDyS ∴ Objects ∴ 1998XU21 ∴ Summary
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(229951) 1998XU21  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 3.08102 2.276e-08 au
e 0.104568 4.719e-08
i 6.419 5.094e-06 deg
Ω 110.399 5.155e-05 deg
ω 40.143 6.081e-05 deg
M 207.51 3.059e-05 deg

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Other useful info
Absolute Magnitude (H)    15.8 mag
Slope parameter (G)    0.15 mag
Perihelion 2.7588 au
Aphelion 3.4032 au
Asc. node-Earth separation 1.83904 au
Desc. node-Earth separation 2.29546 au
Earth MOID 1.77455 au
Orbital period 1975.33 days
Date of orbit computation  feb 22 02:39
Observational summary
Optical observations (Discarded) 542 (3)
Radar observations (Discarded) 0 (0)
Arc length 9094.8 days
Unobserved 186 days

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Ephemeris at epoch 60418 MJD
Right Ascension 4.59347 deg
Declination -3.05063 deg
V Magnitude 22.06 mag
Solar Elongation 25.51 deg
Galactic Latitude -64.66 deg
Rate 0.331 deg/day
Direction 68.623 deg

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