AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ Lena ∴ Summary
Contact »
(789) Lena  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.6866 5.758e-09 au
e 0.14707 2.111e-08
i 10.776 2.732e-06 deg
Ω 232.562 1.164e-05 deg
ω 43.483 1.466e-05 deg
M 332.833 1.032e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    11.4 mag
Slope parameter (G)    0.15 mag
Perihelion 2.2915 au
Aphelion 3.0817 au
Asc. node-Earth separation 1.36438 au
Desc. node-Earth separation 1.95419 au
Earth MOID 1.28858 au
Orbital period 1608.43 days
Date of orbit computation  apr 23 19:46
Observational summary
Optical observations (Discarded) 6271 (70)
Radar observations (Discarded) 0 (0)
Arc length 40081.5 days
Unobserved 35 days

More info »
Ephemeris at epoch 60426 MJD
Right Ascension 266.457 deg
Declination -19.3167 deg
V Magnitude 15.22 mag
Solar Elongation 129.16 deg
Galactic Latitude 4.95 deg
Rate 0.109 deg/day
Direction 16.64 deg

More info »