AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ Hironaka ∴ Summary
Contact »
(6978) Hironaka  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.56423 1.182e-08 au
e 0.171331 5.176e-08
i 7.463 5.596e-06 deg
Ω 339.212 3.615e-05 deg
ω 301.404 3.861e-05 deg
M 97.304 1.638e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    13.3 mag
Slope parameter (G)    0.15 mag
Perihelion 2.1249 au
Aphelion 3.0036 au
Asc. node-Earth separation 1.27573 au
Desc. node-Earth separation 1.74073 au
Earth MOID 1.11886 au
Orbital period 1499.8 days
Date of orbit computation  Oct 31 05:00
Observational summary
Optical observations (Discarded) 1593 (11)
Radar observations (Discarded) 0 (0)
Arc length 23196.3 days
Unobserved 124 days

More info »
Ephemeris at epoch 58538 MJD
Right Ascension 40.3319 deg
Declination 23.0204 deg
V Magnitude 19.04 mag
Solar Elongation -70.35 deg
Galactic Latitude -33.26 deg
Rate 0.28 deg/day
Direction 77.968 deg

More info »





This Web Site has been visited 259485 times since

and this Page has been visited 111 times since 2011/12/12