AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 2008JJ21 ∴ Summary
Contact »
(418398) 2008JJ21  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.56079 2.295e-08 au
e 0.23621 4.104e-08
i 16.123 9.643e-06 deg
Ω 350.88 1.604e-05 deg
ω 280.724 2.907e-05 deg
M 285.497 2.59e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    16.5 mag
Slope parameter (G)    0.15 mag
Perihelion 1.9559 au
Aphelion 3.1657 au
Asc. node-Earth separation 1.31063 au
Desc. node-Earth separation 1.53574 au
Earth MOID 1.01457 au
Orbital period 1496.79 days
Date of orbit computation  apr 23 21:19
Observational summary
Optical observations (Discarded) 382 (3)
Radar observations (Discarded) 0 (0)
Arc length 5812.52 days
Unobserved 48 days

More info »
Ephemeris at epoch 60425 MJD
Right Ascension 156.314 deg
Declination 7.81269 deg
V Magnitude 20.79 mag
Solar Elongation -120.23 deg
Galactic Latitude 50.39 deg
Rate 0.084 deg/day
Direction -157.373 deg

More info »