AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1998ST20 ∴ Summary
Contact »
(173207) 1998ST20  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.59151 1.273e-08 au
e 0.148029 3.836e-08
i 2.764 6.092e-06 deg
Ω 166.296 0.0001028 deg
ω 283.256 0.0001071 deg
M 328.141 2.863e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    16.7 mag
Slope parameter (G)    0.15 mag
Perihelion 2.2079 au
Aphelion 2.9751 au
Asc. node-Earth separation 1.45934 au
Desc. node-Earth separation 1.61712 au
Earth MOID 1.22679 au
Orbital period 1523.8 days
Date of orbit computation  feb 22 02:27
Observational summary
Optical observations (Discarded) 537 (2)
Radar observations (Discarded) 0 (0)
Arc length 10650.7 days
Unobserved 136 days

More info »
Ephemeris at epoch 60423 MJD
Right Ascension 45.7028 deg
Declination 15.3669 deg
V Magnitude 21.47 mag
Solar Elongation -14.75 deg
Galactic Latitude -36.88 deg
Rate 0.505 deg/day
Direction 74.081 deg

More info »