AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1999HW9 ∴ Summary
Contact »
(121125) 1999HW9  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.44341 9.827e-09 au
e 0.13101 4.271e-08
i 1.645 4.302e-06 deg
Ω 247.807 0.0001419 deg
ω 300.4 0.0001426 deg
M 208.77 1.584e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    16.2 mag
Slope parameter (G)    0.15 mag
Perihelion 2.1233 au
Aphelion 2.7635 au
Asc. node-Earth separation 1.23906 au
Desc. node-Earth separation 1.58577 au
Earth MOID 1.12487 au
Orbital period 1395.06 days
Date of orbit computation  apr 23 20:13
Observational summary
Optical observations (Discarded) 856 (6)
Radar observations (Discarded) 0 (0)
Arc length 11957.1 days
Unobserved 176 days

More info »
Ephemeris at epoch 60437 MJD
Right Ascension 37.9498 deg
Declination 15.551 deg
V Magnitude 21.46 mag
Solar Elongation 6.07 deg
Galactic Latitude -40.86 deg
Rate 0.415 deg/day
Direction 72.224 deg

More info »