AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ Hironaka ∴ Summary
Contact »
(6978) Hironaka  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.56194 6.533e-09 au
e 0.173158 3.002e-08
i 7.46 1.83e-06 deg
Ω 339.141 2.469e-05 deg
ω 301.313 2.596e-05 deg
M 217.624 8.129e-06 deg

More info »
Other useful info
Absolute Magnitude (H)    13.7 mag
Slope parameter (G)    0.15 mag
Perihelion 2.1183 au
Aphelion 3.0056 au
Asc. node-Earth separation 1.27135 au
Desc. node-Earth separation 1.74054 au
Earth MOID 1.1133 au
Orbital period 1497.79 days
Date of orbit computation  feb 22 01:51
Observational summary
Optical observations (Discarded) 5941 (147)
Radar observations (Discarded) 0 (0)
Arc length 25123.2 days
Unobserved 79 days

More info »
Ephemeris at epoch 60420 MJD
Right Ascension 114.031 deg
Declination 25.1444 deg
V Magnitude 19.32 mag
Solar Elongation -81.62 deg
Galactic Latitude 20.48 deg
Rate 0.214 deg/day
Direction 109.589 deg

More info »