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(21977) 1999XW2  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.51627 9.168e-09 au
e 0.069259 2.97e-08
i 10.769 3.397e-06 deg
Ω 257.756 2.248e-05 deg
ω 230.763 4.545e-05 deg
M 315.92 3.909e-05 deg

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Other useful info
Absolute Magnitude (H)    13.4 mag
Slope parameter (G)    0.15 mag
Perihelion 2.342 au
Aphelion 2.6905 au
Asc. node-Earth separation 1.60384 au
Desc. node-Earth separation 1.41497 au
Earth MOID 1.37357 au
Orbital period 1457.92 days
Date of orbit computation  feb 22 01:54
Observational summary
Optical observations (Discarded) 3172 (11)
Radar observations (Discarded) 0 (0)
Arc length 13279.4 days
Unobserved 56 days

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Ephemeris at epoch 60398 MJD
Right Ascension 57.0037 deg
Declination 19.941 deg
V Magnitude 18.61 mag
Solar Elongation -50.75 deg
Galactic Latitude -26.41 deg
Rate 0.417 deg/day
Direction 83.23 deg

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