AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ Callahan ∴ Summary
Contact »
(19741) Callahan  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.24758 4.844e-09 au
e 0.130362 3.419e-08
i 8.049 3.813e-06 deg
Ω 167.332 2.139e-05 deg
ω 227.297 2.474e-05 deg
M 145.817 1.208e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    14.6 mag
Slope parameter (G)    0.15 mag
Perihelion 1.9546 au
Aphelion 2.5406 au
Asc. node-Earth separation 1.43128 au
Desc. node-Earth separation 1.02345 au
Earth MOID 0.96947 au
Orbital period 1230.75 days
Date of orbit computation  apr 23 19:50
Observational summary
Optical observations (Discarded) 2854 (18)
Radar observations (Discarded) 0 (0)
Arc length 16637.3 days
Unobserved 55 days

More info »
Ephemeris at epoch 60447 MJD
Right Ascension 181.051 deg
Declination 5.81298 deg
V Magnitude 18.89 mag
Solar Elongation -122.2 deg
Galactic Latitude 65.9 deg
Rate 0.01 deg/day
Direction 91.33 deg

More info »