NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1997WS22 ∴ Summary
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(21374) 1997WS22  ▹ 
SUMMARY
Keplerian elements at epoch
57800.0 MJD
Value 1-σ variation Units
a 1.26946 2.173e-09 au
e 0.120573 2.621e-08
i 23.981 9.203e-06 deg
Ω 59.22 6.4e-06 deg
ω 197.191 1.843e-05 deg
M 319.732 1.354e-05 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 1.4225 au
Asc. node-Earth separation 0.4268 au
Desc. node-Earth separation 0.11002 au
Earth MOID 0.10943 au
Orbital period 522.426 days
Date of orbit computation   May 15 19:59
Observational summary
Optical observations (Discarded) 642 (6)
Radar observations (Discarded) 1 (0)
Arc length 14754 days
Unobserved 864 days

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Ephemeris at epoch 57931 MJD
Right Ascension 32.0271 deg
Declination -21.4654 deg
V Magnitude 19.45 mag
Solar Elongation 76.53 deg
Galactic Latitude -71.66 deg
Rate 0.719 deg/day
Direction 78.498 deg

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