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(380128) 1997WB21  ▹ 
SUMMARY
Keplerian elements
(Epoch 60400.0 MJD)
Value 1-σ variation Units
a 1.45972 1.311e-09 au
e 0.317053 2.134e-08
i 3.39 3.073e-06 deg
Ω 280.951 3.467e-05 deg
ω 81.996 3.626e-05 deg
M 2.558 4.632e-06 deg

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Other useful info
Absolute Magnitude (H)    20.4 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.9969 au
Aphelion distance 1.9225 au
Asc. node-Earth separation 0.24034 au
Desc. node-Earth separation 0.39151 au
Earth MOID 0.05126 au
Orbital period 644.171 days
Date of orbit computation   feb 26 13:18
Observational summary
Optical observations (Discarded) 404 (1)
Radar observations (Discarded) 0 (0)
Arc length 9238 days
Unobserved 409 days

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Ephemeris
(Epoch 60425 MJD)
Right Ascension 32.5036 deg
Declination 14.7721 deg
V Magnitude 22.19 mag
Solar Elongation -1.61 deg
Galactic Latitude -43.97 deg
Rate 1.014 deg/day
Direction 71.044 deg

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