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AstDyS ∴ Objects ∴ 2008HW21 ∴ Summary
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(341895) 2008HW21  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.27452 8.588e-09 au
e 0.176937 4.758e-08
i 3.74 5.619e-06 deg
Ω 213.53 7.53e-05 deg
ω 81.668 7.919e-05 deg
M 178.726 1.922e-05 deg

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Other useful info
Absolute Magnitude (H)    17.9 mag
Slope parameter (G)    0.15 mag
Perihelion 1.8721 au
Aphelion 2.677 au
Asc. node-Earth separation 1.14227 au
Desc. node-Earth separation 1.26845 au
Earth MOID 0.86042 au
Orbital period 1252.94 days
Date of orbit computation  apr 23 21:02
Observational summary
Optical observations (Discarded) 215 (1)
Radar observations (Discarded) 0 (0)
Arc length 7872.88 days
Unobserved 556 days

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Ephemeris at epoch 60427 MJD
Right Ascension 100.742 deg
Declination 19.703 deg
V Magnitude 23.38 mag
Solar Elongation -63.28 deg
Galactic Latitude 7.05 deg
Rate 0.316 deg/day
Direction 91.909 deg

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