AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1989WG4 ∴ Summary
Contact »
(9031) 1989WG4  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.19487 5.428e-09 au
e 0.089527 2.719e-08
i 5.859 2.602e-06 deg
Ω 103.516 3.507e-05 deg
ω 321.472 4.036e-05 deg
M 192.949 2.088e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    14.3 mag
Slope parameter (G)    0.15 mag
Perihelion 1.9984 au
Aphelion 2.3914 au
Asc. node-Earth separation 1.05203 au
Desc. node-Earth separation 1.32468 au
Earth MOID 1.01633 au
Orbital period 1187.71 days
Date of orbit computation  feb 22 01:52
Observational summary
Optical observations (Discarded) 3382 (59)
Radar observations (Discarded) 0 (0)
Arc length 12249.5 days
Unobserved 318 days

More info »
Ephemeris at epoch 60423 MJD
Right Ascension 286.619 deg
Declination -19.7938 deg
V Magnitude 18.69 mag
Solar Elongation 107.35 deg
Galactic Latitude -12.08 deg
Rate 0.152 deg/day
Direction 88.401 deg

More info »