AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 2011BR81 ∴ Summary
Contact »
(331230) 2011BR81  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.57418 2.247e-08 au
e 0.058937 4.657e-08
i 11.582 5.686e-06 deg
Ω 155.935 2.677e-05 deg
ω 119.958 7.054e-05 deg
M 288.961 6.161e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    16.6 mag
Slope parameter (G)    0.15 mag
Perihelion 2.4225 au
Aphelion 2.7259 au
Asc. node-Earth separation 1.65355 au
Desc. node-Earth separation 1.48243 au
Earth MOID 1.42823 au
Orbital period 1508.54 days
Date of orbit computation  feb 22 03:00
Observational summary
Optical observations (Discarded) 366 (1)
Radar observations (Discarded) 0 (0)
Arc length 6171.25 days
Unobserved 124 days

More info »
Ephemeris at epoch 60420 MJD
Right Ascension 201.652 deg
Declination 5.90598 deg
V Magnitude 20.05 mag
Solar Elongation -161.49 deg
Galactic Latitude 67.19 deg
Rate 0.227 deg/day
Direction -58.609 deg

More info »