NEODyS-2

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(21374) 1997WS22  ▹ 
SUMMARY
Keplerian elements
(Epoch 59200.0 MJD)
Value 1-σ variation Units
a 1.26942 1.506e-09 au
e 0.120528 2.245e-08
i 23.98 4.334e-06 deg
Ω 59.215 4.256e-06 deg
ω 197.198 1.121e-05 deg
M 204.532 1.219e-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 0.42576 au
Desc. node-Earth separation 0.10844 au
Earth MOID 0.10783 au
Orbital period 522.403 days
Date of orbit computation   Apr 18 14:59
Observational summary
Optical observations (Discarded) 1308 (2)
Radar observations (Discarded) 1 (0)
Arc length 17009 days
Unobserved 2 days

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Ephemeris
(Epoch 59323 MJD)
Right Ascension 125.134 deg
Declination 55.7442 deg
V Magnitude 19.41 mag
Solar Elongation -85.47 deg
Galactic Latitude 34.53 deg
Rate 0.67 deg/day
Direction 134.84 deg

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