AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1998EC9 ∴ Summary
Contact »
(21383) 1998EC9  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.54959 8.738e-09 au
e 0.25843 4.334e-08
i 6.312 4.754e-06 deg
Ω 86.235 3.114e-05 deg
ω 178.112 3.176e-05 deg
M 66.522 7.415e-06 deg

More info »
Other useful info
Absolute Magnitude (H)    14.5 mag
Slope parameter (G)    0.15 mag
Perihelion 1.8907 au
Aphelion 3.2085 au
Asc. node-Earth separation 2.22463 au
Desc. node-Earth separation 0.87488 au
Earth MOID 0.8748 au
Orbital period 1486.97 days
Date of orbit computation  apr 23 19:50
Observational summary
Optical observations (Discarded) 1669 (6)
Radar observations (Discarded) 0 (0)
Arc length 11717.5 days
Unobserved 176 days

More info »
Ephemeris at epoch 60426 MJD
Right Ascension 15.7699 deg
Declination 1.7934 deg
V Magnitude 19.81 mag
Solar Elongation 21.18 deg
Galactic Latitude -60.94 deg
Rate 0.435 deg/day
Direction 67.874 deg

More info »