AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 2001HL9 ∴ Summary
Contact »
(51581) 2001HL9  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.37657 6.171e-09 au
e 0.226385 3.113e-08
i 8.933 3.85e-06 deg
Ω 61.402 2.285e-05 deg
ω 198.885 2.444e-05 deg
M 69.125 8.718e-06 deg

More info »
Other useful info
Absolute Magnitude (H)    15.3 mag
Slope parameter (G)    0.15 mag
Perihelion 1.8386 au
Aphelion 2.9146 au
Asc. node-Earth separation 1.88267 au
Desc. node-Earth separation 0.84457 au
Earth MOID 0.82585 au
Orbital period 1338.21 days
Date of orbit computation  apr 23 19:57
Observational summary
Optical observations (Discarded) 1675 (16)
Radar observations (Discarded) 0 (0)
Arc length 11601.7 days
Unobserved 253 days

More info »
Ephemeris at epoch 60425 MJD
Right Ascension 13.3052 deg
Declination -0.33816 deg
V Magnitude 20.39 mag
Solar Elongation 23.47 deg
Galactic Latitude -63.21 deg
Rate 0.46 deg/day
Direction 66.379 deg

More info »