AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ Polana ∴ Summary
Contact »
(142) Polana  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.41942 3.534e-09 au
e 0.13384 2.384e-08
i 2.239 2.451e-06 deg
Ω 291.171 5.255e-05 deg
ω 291.898 5.358e-05 deg
M 154.83 1.096e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    10.6 mag
Slope parameter (G)    0.15 mag
Perihelion 2.0956 au
Aphelion 2.7432 au
Asc. node-Earth separation 1.24714 au
Desc. node-Earth separation 1.51749 au
Earth MOID 1.08808 au
Orbital period 1374.57 days
Date of orbit computation  apr 23 19:45
Observational summary
Optical observations (Discarded) 10956 (155)
Radar observations (Discarded) 0 (0)
Arc length 52393.2 days
Unobserved 94 days

More info »
Ephemeris at epoch 60426 MJD
Right Ascension 28.0649 deg
Declination 13.2619 deg
V Magnitude 15.87 mag
Solar Elongation 5.4 deg
Galactic Latitude -47 deg
Rate 0.411 deg/day
Direction 69.489 deg

More info »