AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1999YL9 ∴ Summary
Contact »
(71221) 1999YL9  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.78678 1.363e-08 au
e 0.185883 4.436e-08
i 7.102 5.87e-06 deg
Ω 305.123 4.272e-05 deg
ω 151.148 4.7e-05 deg
M 94.622 1.915e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    15.1 mag
Slope parameter (G)    0.15 mag
Perihelion 2.2688 au
Aphelion 3.3048 au
Asc. node-Earth separation 2.19831 au
Desc. node-Earth separation 1.32988 au
Earth MOID 1.289 au
Orbital period 1699.24 days
Date of orbit computation  feb 22 02:05
Observational summary
Optical observations (Discarded) 804 (1)
Radar observations (Discarded) 0 (0)
Arc length 10770.9 days
Unobserved 433 days

More info »
Ephemeris at epoch 60420 MJD
Right Ascension 211.471 deg
Declination -24.1388 deg
V Magnitude 19.35 mag
Solar Elongation 166.93 deg
Galactic Latitude 35.68 deg
Rate 0.218 deg/day
Direction -71.974 deg

More info »