AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1989US4 ∴ Summary
Contact »
(12698) 1989US4  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.73783 9.552e-09 au
e 0.098368 3.015e-08
i 1.239 3.418e-06 deg
Ω 222.761 0.0001582 deg
ω 186.559 0.0001594 deg
M 204.33 1.889e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    13.6 mag
Slope parameter (G)    0.15 mag
Perihelion 2.4685 au
Aphelion 3.0071 au
Asc. node-Earth separation 1.99687 au
Desc. node-Earth separation 1.47922 au
Earth MOID 1.4789 au
Orbital period 1654.66 days
Date of orbit computation  apr 23 19:48
Observational summary
Optical observations (Discarded) 3165 (18)
Radar observations (Discarded) 0 (0)
Arc length 12526.5 days
Unobserved 76 days

More info »
Ephemeris at epoch 60426 MJD
Right Ascension 270.139 deg
Declination -22.5941 deg
V Magnitude 18.65 mag
Solar Elongation 125.79 deg
Galactic Latitude 0.33 deg
Rate 0.015 deg/day
Direction -56.003 deg

More info »