AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1998SD4 ∴ Summary
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(152704) 1998SD4  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 1.51489 3.639e-09 au
e 0.125255 7.452e-08
i 13.672 8.594e-06 deg
Ω 181.797 2.012e-05 deg
ω 144.114 3.272e-05 deg
M 300.563 2.545e-05 deg

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Other useful info
Absolute Magnitude (H)    18.5 mag
Slope parameter (G)    0.15 mag
Perihelion 1.3251 au
Aphelion 1.7046 au
Asc. node-Earth separation 0.66126 au
Desc. node-Earth separation 0.35073 au
Earth MOID 0.33513 au
Orbital period 681.038 days
Date of orbit computation  Oct 31 06:32
Observational summary
Optical observations (Discarded) 222 (1)
Radar observations (Discarded) 0 (0)
Arc length 7101.83 days
Unobserved 357 days

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Ephemeris at epoch 58531 MJD
Right Ascension 335.054 deg
Declination -7.06055 deg
V Magnitude 21.35 mag
Solar Elongation -7.23 deg
Galactic Latitude -48.93 deg
Rate 0.818 deg/day
Direction 74.898 deg

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