AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1998HE108 ∴ Summary
Contact »
(173189) 1998HE108  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 3.07795 1.973e-08 au
e 0.128246 5.508e-08
i 7.297 4.646e-06 deg
Ω 120.406 4.39e-05 deg
ω 86.464 4.811e-05 deg
M 283.525 2.063e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    15.4 mag
Slope parameter (G)    0.15 mag
Perihelion 2.6832 au
Aphelion 3.4727 au
Asc. node-Earth separation 2.02024 au
Desc. node-Earth separation 2.03551 au
Earth MOID 1.69184 au
Orbital period 1972.38 days
Date of orbit computation  apr 23 20:25
Observational summary
Optical observations (Discarded) 646 (3)
Radar observations (Discarded) 0 (0)
Arc length 9370.13 days
Unobserved 131 days

More info »
Ephemeris at epoch 60427 MJD
Right Ascension 104.067 deg
Declination 22.8541 deg
V Magnitude 21.24 mag
Solar Elongation -66.05 deg
Galactic Latitude 11.21 deg
Rate 0.277 deg/day
Direction 90.981 deg

More info »