NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1997WB21 ∴ Summary
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(380128) 1997WB21  ▹ 
SUMMARY
Keplerian elements at epoch
58000.0 MJD
Value 1-σ variation Units
a 1.46046 1.15e-08 au
e 0.317573 1.396e-07
i 3.391 1.304e-05 deg
Ω 281.071 0.000163 deg
ω 81.83 0.0001729 deg
M 101.858 7.465e-05 deg

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Other useful info
Absolute Magnitude (H)    20.3 mag
Slope parameter (G)    0.15 mag
Perihelion 0.9967 au
Aphelion 1.9243 au
Asc. node-Earth separation 0.24002 au
Desc. node-Earth separation 0.39327 au
Earth MOID 0.05101 au
Orbital period 644.666 days
Date of orbit computation   Jul 10 21:42
Observational summary
Optical observations (Discarded) 93 (4)
Radar observations (Discarded) 0 (0)
Arc length 6700 days
Unobserved 508 days

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Ephemeris at epoch 57986 MJD
Right Ascension 139.124 deg
Declination 14.7582 deg
V Magnitude 23.95 mag
Solar Elongation 10.95 deg
Galactic Latitude 38.7 deg
Rate 0.62 deg/day
Direction 108.931 deg

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