AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 2011QB57 ∴ Summary
Contact »
(398340) 2011QB57  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.38338 9.176e-09 au
e 0.253145 6.016e-08
i 3.031 5.617e-06 deg
Ω 199.577 0.0001171 deg
ω 158.724 0.0001182 deg
M 138.675 1.334e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    18.1 mag
Slope parameter (G)    0.15 mag
Perihelion 1.78 au
Aphelion 2.9867 au
Asc. node-Earth separation 1.91742 au
Desc. node-Earth separation 0.80788 au
Earth MOID 0.77675 au
Orbital period 1343.97 days
Date of orbit computation  feb 22 03:14
Observational summary
Optical observations (Discarded) 244 (1)
Radar observations (Discarded) 0 (0)
Arc length 8518.29 days
Unobserved 67 days

More info »
Ephemeris at epoch 60398 MJD
Right Ascension 137.552 deg
Declination 13.1878 deg
V Magnitude 22.93 mag
Solar Elongation -127.49 deg
Galactic Latitude 36.67 deg
Rate 0.053 deg/day
Direction -46.337 deg

More info »