AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1997WS31 ∴ Summary
Contact »
(18575) 1997WS31  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.25569 7.629e-09 au
e 0.0929 3.368e-08
i 7.619 3.809e-06 deg
Ω 233.19 3.013e-05 deg
ω 219.838 3.816e-05 deg
M 249.139 2.329e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    15.8 mag
Slope parameter (G)    0.15 mag
Perihelion 2.0461 au
Aphelion 2.4652 au
Asc. node-Earth separation 1.39732 au
Desc. node-Earth separation 1.09901 au
Earth MOID 1.06899 au
Orbital period 1237.42 days
Date of orbit computation  feb 22 01:54
Observational summary
Optical observations (Discarded) 1714 (358)
Radar observations (Discarded) 0 (0)
Arc length 18197.7 days
Unobserved 275 days

More info »
Ephemeris at epoch 60419 MJD
Right Ascension 351.188 deg
Declination 2.30371 deg
V Magnitude 20.88 mag
Solar Elongation 36.65 deg
Galactic Latitude -53.91 deg
Rate 0.466 deg/day
Direction 66.078 deg

More info »