AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1999JS121 ∴ Summary
Contact »
(17154) 1999JS121  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.97885 1.909e-08 au
e 0.088075 4.411e-08
i 9.049 4.597e-06 deg
Ω 261.714 2.748e-05 deg
ω 40.169 3.788e-05 deg
M 224.782 2.724e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    12.4 mag
Slope parameter (G)    0.15 mag
Perihelion 2.7165 au
Aphelion 3.2412 au
Asc. node-Earth separation 1.75248 au
Desc. node-Earth separation 2.18413 au
Earth MOID 1.70697 au
Orbital period 1877.9 days
Date of orbit computation  Oct 31 05:07
Observational summary
Optical observations (Discarded) 1957 (18)
Radar observations (Discarded) 0 (0)
Arc length 13281.4 days
Unobserved 229 days

More info »
Ephemeris at epoch 58501 MJD
Right Ascension 190.462 deg
Declination -15.5388 deg
V Magnitude 17.98 mag
Solar Elongation 101.4 deg
Galactic Latitude 47.27 deg
Rate 0.13 deg/day
Direction 135.491 deg

More info »





This Web Site has been visited 99270 times since

and this Page has been visited 80 times since 2011/11/11