NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1998HT31 ∴ Summary
Contact »
1998HT31  ▹ 
SUMMARY
Keplerian elements
(Epoch 59000.0 MJD)
Value 1-σ variation Units
a 2.50686 0.01293 au
e 0.692053 0.001981
i 6.77 0.008414 deg
Ω 213.545 0.07108 deg
ω 80.682 0.06937 deg
M 191.724 10.8 deg

More info »
Other useful info
Absolute Magnitude (H)    20.8 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.772 au
Aphelion distance 4.2417 au
Asc. node-Earth separation 0.16861 au
Desc. node-Earth separation 0.47807 au
Earth MOID 0.03163 au
Orbital period 1449.75 days
Date of orbit computation   May 28 12:33
Observational summary
Optical observations (Discarded) 147 (4)
Radar observations (Discarded) 0 (0)
Arc length 19 days
Unobserved 8103 days

More info »
Ephemeris
(Epoch 59046 MJD)
Right Ascension 119.801 deg
Declination 15.0608 deg
V Magnitude 27.74 mag
Solar Elongation -7.5 deg
Galactic Latitude 21.65 deg
Rate 0.237 deg/day
Direction 101.128 deg

More info »