NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1997WS22 ∴ Summary
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(21374) 1997WS22  ▹ 
SUMMARY
Keplerian elements at epoch
58200.0 MJD
Value 1-σ variation Units
a 1.26939 1.655e-09 au
e 0.120558 2.222e-08
i 23.982 8.256e-06 deg
Ω 59.219 5.701e-06 deg
ω 197.211 1.366e-05 deg
M 235.367 1.154e-05 deg

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Other useful info
Absolute Magnitude (H)    17.3 mag
Slope parameter (G)    0.15 mag
Perihelion 1.1164 au
Aphelion 1.4224 au
Asc. node-Earth separation 0.42514 au
Desc. node-Earth separation 0.11002 au
Earth MOID 0.10942 au
Orbital period 522.385 days
Date of orbit computation   Mar 13 15:31
Observational summary
Optical observations (Discarded) 920 (6)
Radar observations (Discarded) 1 (0)
Arc length 15825 days
Unobserved 152 days

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Ephemeris at epoch 58290 MJD
Right Ascension 147.834 deg
Declination 29.9206 deg
V Magnitude 20.32 mag
Solar Elongation -52.17 deg
Galactic Latitude 50.59 deg
Rate 0.825 deg/day
Direction 122.051 deg

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