NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1997WB21 ∴ Summary
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(380128) 1997WB21  ▹ 
SUMMARY
Keplerian elements
(Epoch 58600.0 MJD)
Value 1-σ variation Units
a 1.46055 1.182e-08 au
e 0.317332 1.46e-07
i 3.391 1.32e-05 deg
Ω 281.042 0.0001694 deg
ω 81.872 0.0001786 deg
M 76.849 8.023e-05 deg

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Other useful info
Absolute Magnitude (H)    20.3 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.9971 au
Aphelion distance 1.924 au
Asc. node-Earth separation 0.23955 au
Desc. node-Earth separation 0.39278 au
Earth MOID 0.05104 au
Orbital period 644.721 days
Date of orbit computation   Jun 10 23:52
Observational summary
Optical observations (Discarded) 86 (4)
Radar observations (Discarded) 0 (0)
Arc length 6700 days
Unobserved 1242 days

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Ephemeris
(Epoch 58720 MJD)
Right Ascension 159.598 deg
Declination 6.49485 deg
V Magnitude 24.36 mag
Solar Elongation -7.7 deg
Galactic Latitude 52.28 deg
Rate 0.55 deg/day
Direction 112.488 deg

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