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AstDyS ∴ Objects ∴ 2007HW21 ∴ Summary
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(229738) 2007HW21  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.61699 2.21e-08 au
e 0.089797 6.471e-08
i 2.323 7.607e-06 deg
Ω 164.504 0.0002367 deg
ω 149.979 0.0002448 deg
M 276.684 6.266e-05 deg

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Other useful info
Absolute Magnitude (H)    17.6 mag
Slope parameter (G)    0.15 mag
Perihelion 2.382 au
Aphelion 2.852 au
Asc. node-Earth separation 1.82316 au
Desc. node-Earth separation 1.40133 au
Earth MOID 1.36827 au
Orbital period 1546.33 days
Date of orbit computation  feb 22 02:39
Observational summary
Optical observations (Discarded) 154 (0)
Radar observations (Discarded) 0 (0)
Arc length 8128.01 days
Unobserved 423 days

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Ephemeris at epoch 60418 MJD
Right Ascension 233.682 deg
Declination -16.0026 deg
V Magnitude 21.41 mag
Solar Elongation 152.71 deg
Galactic Latitude 31.45 deg
Rate 0.154 deg/day
Direction -69.03 deg

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