AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1998HQ9 ∴ Summary
Contact »
(136887) 1998HQ9  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 3.1123 2.111e-08 au
e 0.087811 4.165e-08
i 14.225 5.009e-06 deg
Ω 85.92 2.09e-05 deg
ω 190.584 3.997e-05 deg
M 205.321 3.361e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    14.6 mag
Slope parameter (G)    0.15 mag
Perihelion 2.839 au
Aphelion 3.3856 au
Asc. node-Earth separation 2.39675 au
Desc. node-Earth separation 1.82692 au
Earth MOID 1.82367 au
Orbital period 2005.49 days
Date of orbit computation  feb 22 02:18
Observational summary
Optical observations (Discarded) 933 (6)
Radar observations (Discarded) 0 (0)
Arc length 9404.98 days
Unobserved 89 days

More info »
Ephemeris at epoch 60416 MJD
Right Ascension 104.411 deg
Declination 30.5951 deg
V Magnitude 20.86 mag
Solar Elongation -76.45 deg
Galactic Latitude 14.64 deg
Rate 0.2 deg/day
Direction 96.099 deg

More info »