NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1997WB21 ∴ Summary
Contact »
(380128) 1997WB21  ▹ 
SUMMARY
Keplerian elements at epoch
58000.0 MJD
Value 1-σ variation Units
a 1.46046 6.76e-09 au
e 0.317573 8.202e-08
i 3.391 7.555e-06 deg
Ω 281.071 9.659e-05 deg
ω 81.83 0.0001026 deg
M 101.858 4.409e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    20.3 mag
Slope parameter (G)    0.15 mag
Perihelion 0.9967 au
Aphelion 1.9243 au
Asc. node-Earth separation 0.24002 au
Desc. node-Earth separation 0.39327 au
Earth MOID 0.05101 au
Orbital period 644.666 days
Date of orbit computation   Oct 9 22:18
Observational summary
Optical observations (Discarded) 93 (5)
Radar observations (Discarded) 0 (0)
Arc length 6700 days
Unobserved 570 days

More info »
Ephemeris at epoch 58048 MJD
Right Ascension 172.365 deg
Declination 1.18588 deg
V Magnitude 24.57 mag
Solar Elongation 36.06 deg
Galactic Latitude 57.45 deg
Rate 0.53 deg/day
Direction 114.846 deg

More info »





This Web Site has been visited 47119 times since

and this Page has been visited 3030 times since 2013/12/23