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NEODyS ∴ Objects ∴ 1997WB21 ∴ Summary
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(380128) 1997WB21  ▹ 
SUMMARY
Keplerian elements
(Epoch 58800.0 MJD)
Value 1-σ variation Units
a 1.46044 8.589e-09 au
e 0.317401 1.551e-07
i 3.391 1.169e-05 deg
Ω 281.039 0.000174 deg
ω 81.862 0.0001777 deg
M 188.549 5.467e-05 deg

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Other useful info
Absolute Magnitude (H)    20.3 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.9969 au
Aphelion distance 1.924 au
Asc. node-Earth separation 0.24116 au
Desc. node-Earth separation 0.39263 au
Earth MOID 0.05124 au
Orbital period 644.647 days
Date of orbit computation   Nov 8 14:19
Observational summary
Optical observations (Discarded) 86 (0)
Radar observations (Discarded) 0 (0)
Arc length 6700 days
Unobserved 1332 days

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Ephemeris
(Epoch 58810 MJD)
Right Ascension 204.172 deg
Declination -12.682 deg
V Magnitude 24.76 mag
Solar Elongation 33.17 deg
Galactic Latitude 48.7 deg
Rate 0.528 deg/day
Direction 111.952 deg

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