NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1997WS22 ∴ Summary
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(21374) 1997WS22  ▹ 
SUMMARY
Keplerian elements at epoch
58200.0 MJD
Value 1-σ variation Units
a 1.26939 1.64e-09 au
e 0.120558 2.198e-08
i 23.982 8.108e-06 deg
Ω 59.219 5.541e-06 deg
ω 197.211 1.335e-05 deg
M 235.367 1.145e-05 deg

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Other useful info
Absolute Magnitude (H)    17.4 mag
Slope parameter (G)    0.15 mag
Perihelion 1.1164 au
Aphelion 1.4224 au
Asc. node-Earth separation 0.42514 au
Desc. node-Earth separation 0.11002 au
Earth MOID 0.10942 au
Orbital period 522.385 days
Date of orbit computation   Jun 28 16:02
Observational summary
Optical observations (Discarded) 920 (6)
Radar observations (Discarded) 1 (0)
Arc length 15825 days
Unobserved 212 days

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Ephemeris at epoch 58350 MJD
Right Ascension 191.39 deg
Declination -1.83286 deg
V Magnitude 20.21 mag
Solar Elongation -44.57 deg
Galactic Latitude 61 deg
Rate 0.9 deg/day
Direction 129.036 deg

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