NEODyS-2

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(21374) 1997WS22  ▹ 
SUMMARY
Keplerian elements
(Epoch 60400.0 MJD)
Value 1-σ variation Units
a 1.26941 6.181e-10 au
e 0.120664 1.284e-08
i 23.982 3.24e-06 deg
Ω 59.199 2.418e-06 deg
ω 197.218 7.336e-06 deg
M 311.484 6.021e-06 deg

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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 31 14:45
Observational summary
Optical observations (Discarded) 2043 (7)
Radar observations (Discarded) 1 (0)
Arc length 18145 days
Unobserved 5 days

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Ephemeris
(Epoch 60463 MJD)
Right Ascension 204.992 deg
Declination -50.7018 deg
V Magnitude 15.04 mag
Solar Elongation -134.91 deg
Galactic Latitude 11.43 deg
Rate 2.196 deg/day
Direction -141.206 deg

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