NEODyS-2

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(21374) 1997WS22  ▹ 
SUMMARY
Keplerian elements
(Epoch 59200.0 MJD)
Value 1-σ variation Units
a 1.26942 1.501e-09 au
e 0.120528 2.22e-08
i 23.98 4.232e-06 deg
Ω 59.215 4.219e-06 deg
ω 197.198 1.12e-05 deg
M 204.532 1.218e-05 deg

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Other useful info
Absolute Magnitude (H)    17.5 mag
Slope parameter (G)    0.15 mag
Perihelion distance 1.1164 au
Aphelion distance 1.4224 au
Asc. node-Earth separation 0.42576 au
Desc. node-Earth separation 0.10844 au
Earth MOID 0.10783 au
Orbital period 522.403 days
Date of orbit computation   giu 9 14:28
Observational summary
Optical observations (Discarded) 1349 (2)
Radar observations (Discarded) 1 (0)
Arc length 17061 days
Unobserved 16 days

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Ephemeris
(Epoch 59390 MJD)
Right Ascension 170.734 deg
Declination 11.9958 deg
V Magnitude 19.55 mag
Solar Elongation -73.51 deg
Galactic Latitude 64.32 deg
Rate 0.942 deg/day
Direction 142.983 deg

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