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 1.06e-09 au
e 0.120558 1.384e-08
i 23.982 4.992e-06 deg
Ω 59.219 3.505e-06 deg
ω 197.211 8.404e-06 deg
M 235.367 7.196e-06 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   Feb 7 10:54
Observational summary
Optical observations (Discarded) 914 (30)
Radar observations (Discarded) 1 (0)
Arc length 15825 days
Unobserved 31 days

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Ephemeris at epoch 58169 MJD
Right Ascension 45.1711 deg
Declination 39.0129 deg
V Magnitude 20.02 mag
Solar Elongation -83.49 deg
Galactic Latitude -17.3 deg
Rate 0.488 deg/day
Direction 65.147 deg

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