NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1997WS22 ∴ Summary
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(21374) 1997WS22  ▹ 
SUMMARY
Keplerian elements at epoch
58000.0 MJD
Value 1-σ variation Units
a 1.26943 9.813e-10 au
e 0.120526 1.244e-08
i 23.981 4.578e-06 deg
Ω 59.219 3.004e-06 deg
ω 197.213 7.435e-06 deg
M 97.538 6.875e-06 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 1.4224 au
Asc. node-Earth separation 0.42674 au
Desc. node-Earth separation 0.11072 au
Earth MOID 0.1101 au
Orbital period 522.411 days
Date of orbit computation   Jan 16 15:53
Observational summary
Optical observations (Discarded) 904 (46)
Radar observations (Discarded) 1 (0)
Arc length 15821 days
Unobserved 4 days

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Ephemeris at epoch 58137 MJD
Right Ascension 31.3519 deg
Declination 31.5652 deg
V Magnitude 19.42 mag
Solar Elongation -101.04 deg
Galactic Latitude -28.72 deg
Rate 0.352 deg/day
Direction 42.529 deg

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