AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 2009HJ99 ∴ Summary
Contact »
(251609) 2009HJ99  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 3.09661 1.82e-08 au
e 0.121845 5.238e-08
i 12.919 6.836e-06 deg
Ω 184.397 2.207e-05 deg
ω 140.907 4.009e-05 deg
M 182.028 3.028e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    16.4 mag
Slope parameter (G)    0.15 mag
Perihelion 2.7193 au
Aphelion 3.4739 au
Asc. node-Earth separation 2.37207 au
Desc. node-Earth separation 1.7855 au
Earth MOID 1.72237 au
Orbital period 1990.35 days
Date of orbit computation  apr 23 20:42
Observational summary
Optical observations (Discarded) 312 (5)
Radar observations (Discarded) 0 (0)
Arc length 10741.9 days
Unobserved 54 days

More info »
Ephemeris at epoch 60427 MJD
Right Ascension 134.788 deg
Declination 9.03362 deg
V Magnitude 22.5 mag
Solar Elongation -97.63 deg
Galactic Latitude 32.44 deg
Rate 0.119 deg/day
Direction 73.98 deg

More info »