AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1990QB9 ∴ Summary
Contact »
(58168) 1990QB9  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.30732 8.655e-09 au
e 0.190734 3.822e-08
i 6.905 4.837e-06 deg
Ω 146.38 3.108e-05 deg
ω 240.955 3.358e-05 deg
M 176.512 1.382e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    15.3 mag
Slope parameter (G)    0.15 mag
Perihelion 1.8672 au
Aphelion 2.7474 au
Asc. node-Earth separation 1.46275 au
Desc. node-Earth separation 1.02339 au
Earth MOID 0.88247 au
Orbital period 1280.15 days
Date of orbit computation  feb 22 02:02
Observational summary
Optical observations (Discarded) 1443 (4)
Radar observations (Discarded) 0 (0)
Arc length 12205.3 days
Unobserved 91 days

More info »
Ephemeris at epoch 60416 MJD
Right Ascension 210.181 deg
Declination -2.12791 deg
V Magnitude 19.03 mag
Solar Elongation 170.09 deg
Galactic Latitude 56.32 deg
Rate 0.255 deg/day
Direction -64.551 deg

More info »