NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1997WS22 ∴ Summary
Contact »
(21374) 1997WS22  ▹ 
SUMMARY
Keplerian elements
(Epoch 60400.0 MJD)
Value 1-σ variation Units
a 1.26941 6.939e-10 au
e 0.120664 1.562e-08
i 23.982 3.305e-06 deg
Ω 59.199 3.361e-06 deg
ω 197.218 8.083e-06 deg
M 311.484 7.03e-06 deg

More info »
Other useful info
Absolute Magnitude (H)    17.5 mag
Slope parameter (G)    0.15 mag
Perihelion distance 1.1162 au
Aphelion distance 1.4226 au
Asc. node-Earth separation 0.42686 au
Desc. node-Earth separation 0.10962 au
Earth MOID 0.10902 au
Orbital period 522.399 days
Date of orbit computation   May 5 14:39
Observational summary
Optical observations (Discarded) 1693 (3)
Radar observations (Discarded) 1 (0)
Arc length 18122 days
Unobserved 4 days

More info »
Ephemeris
(Epoch 60438 MJD)
Right Ascension 245.77 deg
Declination 15.4443 deg
V Magnitude 15.03 mag
Solar Elongation 141.62 deg
Galactic Latitude 39.7 deg
Rate 1.876 deg/day
Direction -153.958 deg

More info »