AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1998QW18 ∴ Summary
Contact »
(23789) 1998QW18  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.7392 1.267e-08 au
e 0.061439 3.486e-08
i 12.454 4.853e-06 deg
Ω 172.595 1.734e-05 deg
ω 263.635 4.712e-05 deg
M 135.256 4.191e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    14.7 mag
Slope parameter (G)    0.15 mag
Perihelion 2.5709 au
Aphelion 2.9075 au
Asc. node-Earth separation 1.75377 au
Desc. node-Earth separation 1.70538 au
Earth MOID 1.62142 au
Orbital period 1655.9 days
Date of orbit computation  apr 23 19:51
Observational summary
Optical observations (Discarded) 1722 (9)
Radar observations (Discarded) 0 (0)
Arc length 11674.2 days
Unobserved 38 days

More info »
Ephemeris at epoch 60425 MJD
Right Ascension 225.223 deg
Declination -2.31577 deg
V Magnitude 18.8 mag
Solar Elongation 163.51 deg
Galactic Latitude 47.11 deg
Rate 0.223 deg/day
Direction -57.824 deg

More info »