AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1999NB4 ∴ Summary
Contact »
(42817) 1999NB4  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.26763 5.581e-09 au
e 0.209945 3.245e-08
i 4.997 3.564e-06 deg
Ω 260.173 4.168e-05 deg
ω 69.637 4.261e-05 deg
M 69.176 9.657e-06 deg

More info »
Other useful info
Absolute Magnitude (H)    15.6 mag
Slope parameter (G)    0.15 mag
Perihelion 1.7915 au
Aphelion 2.7437 au
Asc. node-Earth separation 1.00435 au
Desc. node-Earth separation 1.35512 au
Earth MOID 0.78775 au
Orbital period 1247.26 days
Date of orbit computation  feb 22 01:59
Observational summary
Optical observations (Discarded) 1473 (10)
Radar observations (Discarded) 0 (0)
Arc length 15086.6 days
Unobserved 137 days

More info »
Ephemeris at epoch 60423 MJD
Right Ascension 56.2858 deg
Declination 20.4964 deg
V Magnitude 20.54 mag
Solar Elongation -25.68 deg
Galactic Latitude -26.47 deg
Rate 0.493 deg/day
Direction 79.42 deg

More info »