AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1999JB57 ∴ Summary
Contact »
(129784) 1999JB57  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.25835 6.636e-09 au
e 0.205009 3.386e-08
i 5.07 4.508e-06 deg
Ω 47.566 4.566e-05 deg
ω 240.93 4.721e-05 deg
M 85.431 1.369e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    16.4 mag
Slope parameter (G)    0.15 mag
Perihelion 1.7954 au
Aphelion 2.7213 au
Asc. node-Earth separation 1.41291 au
Desc. node-Earth separation 0.95828 au
Earth MOID 0.78564 au
Orbital period 1239.61 days
Date of orbit computation  apr 23 20:15
Observational summary
Optical observations (Discarded) 923 (8)
Radar observations (Discarded) 0 (0)
Arc length 8952.86 days
Unobserved 167 days

More info »
Ephemeris at epoch 60427 MJD
Right Ascension 39.7206 deg
Declination 15.2711 deg
V Magnitude 21.18 mag
Solar Elongation -5.21 deg
Galactic Latitude -40.23 deg
Rate 0.47 deg/day
Direction 70.238 deg

More info »