NEODyS-2

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(21374) 1997WS22  ▹ 
SUMMARY
Keplerian elements
(Epoch 60400.0 MJD)
Value 1-σ variation Units
a 1.26941 6.17e-10 au
e 0.120664 1.279e-08
i 23.982 3.225e-06 deg
Ω 59.199 2.407e-06 deg
ω 197.218 7.323e-06 deg
M 311.484 6.002e-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   Jun 4 14:48
Observational summary
Optical observations (Discarded) 2047 (6)
Radar observations (Discarded) 1 (0)
Arc length 18152 days
Unobserved 3 days

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Ephemeris
(Epoch 60467 MJD)
Right Ascension 196.49 deg
Declination -56.3916 deg
V Magnitude 15.52 mag
Solar Elongation -126.4 deg
Galactic Latitude 6.42 deg
Rate 1.627 deg/day
Direction -135.629 deg

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