NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1998SD9 ∴ Summary
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1998SD9  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 0.702982 9.46e-10 au
e 0.503987 3.085e-07
i 3.028 1.375e-05 deg
Ω 166.334 3.691e-05 deg
ω 7.056 4.438e-05 deg
M 202.573 9.711e-05 deg

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Other useful info
Absolute Magnitude (H)    23.9 mag
Slope parameter (G)    0.15 mag
Perihelion 0.3487 au
Aphelion 1.0573 au
Asc. node-Earth separation -0.64439 au
Desc. node-Earth separation 0.04177 au
Earth MOID 0.00946 au
Orbital period 215.286 days
Date of orbit computation   Oct 1 16:40
Observational summary
Optical observations (Discarded) 145 (27)
Radar observations (Discarded) 0 (0)
Arc length 7291 days
Unobserved 41 days

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Ephemeris at epoch 58407 MJD
Right Ascension 293.427 deg
Declination -25.6432 deg
V Magnitude 23.83 mag
Solar Elongation -88.73 deg
Galactic Latitude -20.15 deg
Rate 0.208 deg/day
Direction 93.314 deg

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