AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 2001XW221 ∴ Summary
Contact »
(141220) 2001XW221  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.69069 1.684e-08 au
e 0.028677 5.512e-08
i 5.022 4.407e-06 deg
Ω 272.679 5.803e-05 deg
ω 93.472 9.945e-05 deg
M 74.457 8.141e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    15.6 mag
Slope parameter (G)    0.15 mag
Perihelion 2.6135 au
Aphelion 2.7678 au
Asc. node-Earth separation 1.67663 au
Desc. node-Earth separation 1.70101 au
Earth MOID 1.6165 au
Orbital period 1612.1 days
Date of orbit computation  apr 23 20:18
Observational summary
Optical observations (Discarded) 864 (3)
Radar observations (Discarded) 0 (0)
Arc length 8631.3 days
Unobserved 36 days

More info »
Ephemeris at epoch 60426 MJD
Right Ascension 74.5128 deg
Declination 22.8856 deg
V Magnitude 21.2 mag
Solar Elongation -39.84 deg
Galactic Latitude -12.24 deg
Rate 0.394 deg/day
Direction 86.254 deg

More info »