NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1997WB21 ∴ Summary
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(380128) 1997WB21  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 1.46058 1.145e-08 au
e 0.317308 1.395e-07
i 3.391 1.305e-05 deg
Ω 281.043 0.0001629 deg
ω 81.874 0.0001729 deg
M 325.175 7.731e-05 deg

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Other useful info
Absolute Magnitude (H)    20.3 mag
Slope parameter (G)    0.15 mag
Perihelion 0.9971 au
Aphelion 1.924 au
Asc. node-Earth separation 0.23909 au
Desc. node-Earth separation 0.39148 au
Earth MOID 0.0511 au
Orbital period 644.743 days
Date of orbit computation   Oct 1 22:14
Observational summary
Optical observations (Discarded) 93 (4)
Radar observations (Discarded) 0 (0)
Arc length 6700 days
Unobserved 1090 days

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Ephemeris at epoch 58568 MJD
Right Ascension 58.5086 deg
Declination 20.4274 deg
V Magnitude 23.54 mag
Solar Elongation -55.91 deg
Galactic Latitude -25.08 deg
Rate 0.838 deg/day
Direction 80.098 deg

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