AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1999WJ15 ∴ Summary
Contact »
(137644) 1999WJ15  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.35059 1.107e-08 au
e 0.195638 4.139e-08
i 2.797 4.751e-06 deg
Ω 228.756 9.424e-05 deg
ω 71.666 9.521e-05 deg
M 359.8 1.421e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    16.3 mag
Slope parameter (G)    0.15 mag
Perihelion 1.8907 au
Aphelion 2.8105 au
Asc. node-Earth separation 1.11941 au
Desc. node-Earth separation 1.42019 au
Earth MOID 0.87722 au
Orbital period 1316.33 days
Date of orbit computation  apr 23 20:17
Observational summary
Optical observations (Discarded) 636 (7)
Radar observations (Discarded) 0 (0)
Arc length 9184.89 days
Unobserved 338 days

More info »
Ephemeris at epoch 60426 MJD
Right Ascension 338.505 deg
Declination -6.48257 deg
V Magnitude 20.64 mag
Solar Elongation 58.24 deg
Galactic Latitude -51.4 deg
Rate 0.547 deg/day
Direction 67.087 deg

More info »