NEODyS-2

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(21374) 1997WS22  ▹ 
SUMMARY
Keplerian elements
(Epoch 60400.0 MJD)
Value 1-σ variation Units
a 1.26941 7.984e-10 au
e 0.120664 1.769e-08
i 23.982 3.536e-06 deg
Ω 59.199 3.651e-06 deg
ω 197.218 8.605e-06 deg
M 311.484 7.849e-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   apr 24 14:32
Observational summary
Optical observations (Discarded) 1547 (3)
Radar observations (Discarded) 1 (0)
Arc length 18111 days
Unobserved 1 days

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Ephemeris
(Epoch 60425 MJD)
Right Ascension 252.954 deg
Declination 28.9758 deg
V Magnitude 16.34 mag
Solar Elongation 122.64 deg
Galactic Latitude 37.52 deg
Rate 0.647 deg/day
Direction -155.536 deg

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