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(380128) 1997WB21  ▹ 
SUMMARY
Keplerian elements
(Epoch 59600.0 MJD)
Value 1-σ variation Units
a 1.45955 1.282e-09 au
e 0.317142 2.142e-08
i 3.391 3.094e-06 deg
Ω 280.978 3.481e-05 deg
ω 81.95 3.646e-05 deg
M 275.503 4.51e-06 deg

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Other useful info
Absolute Magnitude (H)    20.4 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.9967 au
Aphelion distance 1.9224 au
Asc. node-Earth separation 0.24123 au
Desc. node-Earth separation 0.39097 au
Earth MOID 0.05142 au
Orbital period 644.06 days
Date of orbit computation   apr 29 12:18
Observational summary
Optical observations (Discarded) 390 (1)
Radar observations (Discarded) 0 (0)
Arc length 8454 days
Unobserved 486 days

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Ephemeris
(Epoch 59718 MJD)
Right Ascension 9.50389 deg
Declination 6.00265 deg
V Magnitude 22.96 mag
Solar Elongation 46.65 deg
Galactic Latitude -56.71 deg
Rate 1.085 deg/day
Direction 65.434 deg

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