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AstDyS ∴ Objects ∴ 1997WA31 ∴ Summary
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(22507) 1997WA31  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.43195 7.929e-09 au
e 0.173142 3.644e-08
i 3.428 3.807e-06 deg
Ω 71.481 6.097e-05 deg
ω 217.642 6.175e-05 deg
M 92.994 1.055e-05 deg

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Other useful info
Absolute Magnitude (H)    15.1 mag
Slope parameter (G)    0.15 mag
Perihelion 2.0109 au
Aphelion 2.853 au
Asc. node-Earth separation 1.74853 au
Desc. node-Earth separation 1.06059 au
Earth MOID 0.99566 au
Orbital period 1385.25 days
Date of orbit computation  apr 23 19:50
Observational summary
Optical observations (Discarded) 1714 (5)
Radar observations (Discarded) 0 (0)
Arc length 10008.8 days
Unobserved 167 days

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Ephemeris at epoch 60426 MJD
Right Ascension 42.0572 deg
Declination 15.1382 deg
V Magnitude 20.2 mag
Solar Elongation -8.35 deg
Galactic Latitude -39.11 deg
Rate 0.438 deg/day
Direction 71.585 deg

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