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AstDyS ∴ Objects ∴ 2004HW21 ∴ Summary
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(149695) 2004HW21  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 3.18169 2.237e-08 au
e 0.040486 4.078e-08
i 4.355 4.904e-06 deg
Ω 38.042 6.785e-05 deg
ω 205.015 9.898e-05 deg
M 158.459 7.235e-05 deg

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Other useful info
Absolute Magnitude (H)    15.7 mag
Slope parameter (G)    0.15 mag
Perihelion 3.0529 au
Aphelion 3.3105 au
Asc. node-Earth separation 2.30548 au
Desc. node-Earth separation 2.05716 au
Earth MOID 2.04062 au
Orbital period 2072.93 days
Date of orbit computation  feb 22 02:21
Observational summary
Optical observations (Discarded) 512 (2)
Radar observations (Discarded) 0 (0)
Arc length 10272.9 days
Unobserved 137 days

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Ephemeris at epoch 60397 MJD
Right Ascension 32.3251 deg
Declination 13.3472 deg
V Magnitude 21.97 mag
Solar Elongation -27.23 deg
Galactic Latitude -45.33 deg
Rate 0.336 deg/day
Direction 68.788 deg

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