NEODyS-2

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(21374) 1997WS22  ▹ 
SUMMARY
Keplerian elements
(Epoch 59000.0 MJD)
Value 1-σ variation Units
a 1.26939 1.89e-09 au
e 0.120585 2.369e-08
i 23.981 9.35e-06 deg
Ω 59.215 5.748e-06 deg
ω 197.206 1.414e-05 deg
M 66.691 1.27e-05 deg

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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   Feb 26 12:54
Observational summary
Optical observations (Discarded) 920 (1)
Radar observations (Discarded) 1 (0)
Arc length 15825 days
Unobserved 810 days

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Ephemeris
(Epoch 58948 MJD)
Right Ascension 341.682 deg
Declination -23.2187 deg
V Magnitude 20.21 mag
Solar Elongation 46.87 deg
Galactic Latitude -61.59 deg
Rate 0.921 deg/day
Direction 77.177 deg

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