NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1997WB21 ∴ Summary
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(380128) 1997WB21  ▹ 
SUMMARY
Keplerian elements at epoch
57800.0 MJD
Value 1-σ variation Units
a 1.46046 1.153e-08 au
e 0.317585 1.396e-07
i 3.391 1.304e-05 deg
Ω 281.075 0.000163 deg
ω 81.828 0.0001729 deg
M 350.169 7.337e-05 deg

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Other useful info
Absolute Magnitude (H)    20.3 mag
Slope parameter (G)    0.15 mag
Perihelion 0.9966 au
Aphelion 1.9243 au
Asc. node-Earth separation 0.24018 au
Desc. node-Earth separation 0.39246 au
Earth MOID 0.05126 au
Orbital period 644.667 days
Date of orbit computation   Nov 18 15:21
Observational summary
Optical observations (Discarded) 93 (4)
Radar observations (Discarded) 0 (0)
Arc length 6700 days
Unobserved 357 days

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Ephemeris at epoch 57835 MJD
Right Ascension 10.8046 deg
Declination 6.49324 deg
V Magnitude 22.46 mag
Solar Elongation -10.3 deg
Galactic Latitude -56.32 deg
Rate 1.056 deg/day
Direction 67.276 deg

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