AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ Roehla ∴ Summary
Contact »
(1557) Roehla  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 3.01082 8.774e-09 au
e 0.10616 2.833e-08
i 10.298 2.743e-06 deg
Ω 355.184 1.642e-05 deg
ω 4.05 2.18e-05 deg
M 19.814 1.536e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    11.5 mag
Slope parameter (G)    0.15 mag
Perihelion 2.6912 au
Aphelion 3.3304 au
Asc. node-Earth separation 1.68756 au
Desc. node-Earth separation 2.33494 au
Earth MOID 1.68746 au
Orbital period 1908.21 days
Date of orbit computation  apr 23 19:46
Observational summary
Optical observations (Discarded) 5041 (71)
Radar observations (Discarded) 0 (0)
Arc length 43952.2 days
Unobserved 94 days

More info »
Ephemeris at epoch 60426 MJD
Right Ascension 27.4041 deg
Declination 15.8336 deg
V Magnitude 16.84 mag
Solar Elongation 6.44 deg
Galactic Latitude -44.78 deg
Rate 0.428 deg/day
Direction 65.79 deg

More info »