NEODyS-2

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(21374) 1997WS22  ▹ 
SUMMARY
Keplerian elements
(Epoch 59000.0 MJD)
Value 1-σ variation Units
a 1.26939 1.524e-09 au
e 0.120585 2.26e-08
i 23.981 4.488e-06 deg
Ω 59.215 4.275e-06 deg
ω 197.206 1.126e-05 deg
M 66.691 1.204e-05 deg

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Other useful info
Absolute Magnitude (H)    17.4 mag
Slope parameter (G)    0.15 mag
Perihelion distance 1.1163 au
Aphelion distance 1.4225 au
Asc. node-Earth separation 0.42647 au
Desc. node-Earth separation 0.10971 au
Earth MOID 0.10913 au
Orbital period 522.387 days
Date of orbit computation   Feb 24 14:02
Observational summary
Optical observations (Discarded) 1234 (2)
Radar observations (Discarded) 1 (0)
Arc length 16956 days
Unobserved 7 days

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Ephemeris
(Epoch 59275 MJD)
Right Ascension 83.57 deg
Declination 71.2317 deg
V Magnitude 19.1 mag
Solar Elongation -100.38 deg
Galactic Latitude 19.7 deg
Rate 0.299 deg/day
Direction 134.13 deg

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