AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1999TW21 ∴ Summary
Contact »
(91608) 1999TW21  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 3.07232 1.762e-08 au
e 0.161881 4.16e-08
i 5.825 5.322e-06 deg
Ω 23.34 4.438e-05 deg
ω 65.719 4.844e-05 deg
M 135.284 1.717e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    15.1 mag
Slope parameter (G)    0.15 mag
Perihelion 2.575 au
Aphelion 3.5697 au
Asc. node-Earth separation 1.80921 au
Desc. node-Earth separation 2.20223 au
Earth MOID 1.59857 au
Orbital period 1966.97 days
Date of orbit computation  apr 23 20:06
Observational summary
Optical observations (Discarded) 871 (5)
Radar observations (Discarded) 0 (0)
Arc length 8681.02 days
Unobserved 291 days

More info »
Ephemeris at epoch 60425 MJD
Right Ascension 245.645 deg
Declination -26.187 deg
V Magnitude 20.53 mag
Solar Elongation 146.46 deg
Galactic Latitude 16.37 deg
Rate 0.132 deg/day
Direction -93.489 deg

More info »