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AstDyS ∴ Objects ∴ 1998YS9 ∴ Summary
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(15055) 1998YS9  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 3.21241 1.607e-08 au
e 0.136137 3.893e-08
i 3.014 3.816e-06 deg
Ω 137.249 8.377e-05 deg
ω 18.439 8.511e-05 deg
M 105.276 1.566e-05 deg

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Other useful info
Absolute Magnitude (H)    14.1 mag
Slope parameter (G)    0.15 mag
Perihelion 2.7751 au
Aphelion 3.6497 au
Asc. node-Earth separation 1.80667 au
Desc. node-Earth separation 2.60685 au
Earth MOID 1.78558 au
Orbital period 2103.03 days
Date of orbit computation  apr 23 19:49
Observational summary
Optical observations (Discarded) 1703 (9)
Radar observations (Discarded) 0 (0)
Arc length 9800.66 days
Unobserved 287 days

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Ephemeris at epoch 60425 MJD
Right Ascension 297.61 deg
Declination -18.9333 deg
V Magnitude 20.09 mag
Solar Elongation 98.92 deg
Galactic Latitude -21.24 deg
Rate 0.108 deg/day
Direction 78.022 deg

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