AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 2009SY257 ∴ Summary
Contact »
(328659) 2009SY257  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.76532 2.932e-08 au
e 0.078873 7.174e-08
i 3.806 7.31e-06 deg
Ω 40.698 0.0001073 deg
ω 316.897 0.0001161 deg
M 65.198 4.418e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    17.2 mag
Slope parameter (G)    0.15 mag
Perihelion 2.5472 au
Aphelion 2.9834 au
Asc. node-Earth separation 1.60712 au
Desc. node-Earth separation 1.90853 au
Earth MOID 1.54483 au
Orbital period 1679.64 days
Date of orbit computation  apr 23 20:59
Observational summary
Optical observations (Discarded) 194 (1)
Radar observations (Discarded) 0 (0)
Arc length 7510.93 days
Unobserved 159 days

More info »
Ephemeris at epoch 60427 MJD
Right Ascension 64.5046 deg
Declination 23.1382 deg
V Magnitude 22.77 mag
Solar Elongation -29.82 deg
Galactic Latitude -19.19 deg
Rate 0.408 deg/day
Direction 79.314 deg

More info »