NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1997WS22 ∴ Summary
Contact »
(21374) 1997WS22  ▹ 
SUMMARY
Keplerian elements
(Epoch 59000.0 MJD)
Value 1-σ variation Units
a 1.26939 1.889e-09 au
e 0.120585 2.369e-08
i 23.981 9.339e-06 deg
Ω 59.215 5.748e-06 deg
ω 197.206 1.414e-05 deg
M 66.691 1.27e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    17.4 mag
Slope parameter (G)    0.15 mag
Perihelion distance 1.1163 au
Aphelion distance 1.4225 au
Asc. node-Earth separation 0.42647 au
Desc. node-Earth separation 0.10971 au
Earth MOID 0.10913 au
Orbital period 522.387 days
Date of orbit computation   Aug 24 14:42
Observational summary
Optical observations (Discarded) 924 (1)
Radar observations (Discarded) 1 (0)
Arc length 16772 days
Unobserved 37 days

More info »
Ephemeris
(Epoch 59121 MJD)
Right Ascension 99.0979 deg
Declination 19.5004 deg
V Magnitude 19.91 mag
Solar Elongation 87.45 deg
Galactic Latitude 5.58 deg
Rate 0.549 deg/day
Direction 63.289 deg

More info »