NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1997WS22 ∴ Summary
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(21374) 1997WS22  ▹ 
SUMMARY
Keplerian elements
(Epoch 58600.0 MJD)
Value 1-σ variation Units
a 1.26939 1.636e-09 au
e 0.120532 2.198e-08
i 23.982 8.108e-06 deg
Ω 59.218 5.541e-06 deg
ω 197.199 1.335e-05 deg
M 151.04 1.16e-05 deg

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Other useful info
Absolute Magnitude (H)    17.4 mag
Slope parameter (G)    0.15 mag
Perihelion distance 1.1164 au
Aphelion distance 1.4224 au
Asc. node-Earth separation 0.42608 au
Desc. node-Earth separation 0.10972 au
Earth MOID 0.10911 au
Orbital period 522.388 days
Date of orbit computation   May 25 11:17
Observational summary
Optical observations (Discarded) 920 (6)
Radar observations (Discarded) 1 (0)
Arc length 15825 days
Unobserved 604 days

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Ephemeris
(Epoch 58742 MJD)
Right Ascension 157.449 deg
Declination 24.5097 deg
V Magnitude 20.66 mag
Solar Elongation 26.37 deg
Galactic Latitude 58.12 deg
Rate 0.793 deg/day
Direction 108.359 deg

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