AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1998HW ∴ Summary
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(17827) 1998HW  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.74569 1.329e-08 au
e 0.161786 3.549e-08
i 14.156 5.858e-06 deg
Ω 188.305 1.477e-05 deg
ω 294.367 2.423e-05 deg
M 245.518 1.921e-05 deg

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Other useful info
Absolute Magnitude (H)    13.2 mag
Slope parameter (G)    0.15 mag
Perihelion 2.3015 au
Aphelion 3.1899 au
Asc. node-Earth separation 1.50636 au
Desc. node-Earth separation 1.86393 au
Earth MOID 1.35449 au
Orbital period 1661.79 days
Date of orbit computation  Oct 31 05:07
Observational summary
Optical observations (Discarded) 1518 (13)
Radar observations (Discarded) 0 (0)
Arc length 13541.4 days
Unobserved 153 days

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Ephemeris at epoch 58560 MJD
Right Ascension 16.4946 deg
Declination 3.89202 deg
V Magnitude 18.74 mag
Solar Elongation -20.05 deg
Galactic Latitude -58.78 deg
Rate 0.407 deg/day
Direction 72.295 deg

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