NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1997WS22 ∴ Summary
Contact »
(21374) 1997WS22  ▹ 
SUMMARY
Keplerian elements
(Epoch 59600.0 MJD)
Value 1-σ variation Units
a 1.26939 1.496e-09 au
e 0.120571 2.22e-08
i 23.98 4.232e-06 deg
Ω 59.206 4.218e-06 deg
ω 197.211 1.12e-05 deg
M 120.176 1.25e-05 deg

More info »
Other useful info
Absolute Magnitude (H)    17.5 mag
Slope parameter (G)    0.15 mag
Perihelion distance 1.1163 au
Aphelion distance 1.4224 au
Asc. node-Earth separation 0.42647 au
Desc. node-Earth separation 0.11072 au
Earth MOID 0.11013 au
Orbital period 522.387 days
Date of orbit computation   apr 29 12:19
Observational summary
Optical observations (Discarded) 1355 (3)
Radar observations (Discarded) 1 (0)
Arc length 17084 days
Unobserved 322 days

More info »
Ephemeris
(Epoch 59718 MJD)
Right Ascension 75.0105 deg
Declination 30.809 deg
V Magnitude 20.85 mag
Solar Elongation -20.87 deg
Galactic Latitude -7.1 deg
Rate 0.701 deg/day
Direction 75.418 deg

More info »