AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1998TH21 ∴ Summary
Contact »
(297308) 1998TH21  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.68549 1.438e-08 au
e 0.137074 6.77e-08
i 3.777 7.331e-06 deg
Ω 20.297 7.837e-05 deg
ω 359.872 8.228e-05 deg
M 289.281 2.189e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    17.2 mag
Slope parameter (G)    0.15 mag
Perihelion 2.3174 au
Aphelion 3.0536 au
Asc. node-Earth separation 1.32049 au
Desc. node-Earth separation 2.05174 au
Earth MOID 1.31988 au
Orbital period 1607.44 days
Date of orbit computation  feb 22 02:53
Observational summary
Optical observations (Discarded) 254 (0)
Radar observations (Discarded) 0 (0)
Arc length 8990.95 days
Unobserved 327 days

More info »
Ephemeris at epoch 60419 MJD
Right Ascension 323.383 deg
Declination -18.1914 deg
V Magnitude 22.46 mag
Solar Elongation 69.33 deg
Galactic Latitude -43.77 deg
Rate 0.351 deg/day
Direction 73.446 deg

More info »