NEODyS-2

Near Earth Objects - Dynamic Site
NEODyS ∴ Objects ∴ 1998SD9 ∴ Summary
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1998SD9  ▹ 
SUMMARY
Keplerian elements
(Epoch 58800.0 MJD)
Value 1-σ variation Units
a 0.703034 4.695e-09 au
e 0.503951 3.688e-07
i 3.028 3.675e-05 deg
Ω 166.327 0.0001169 deg
ω 7.051 0.0001287 deg
M 151.411 0.0001127 deg

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Other useful info
Absolute Magnitude (H)    23.9 mag
Slope parameter (G)    0.15 mag
Perihelion distance 0.3487 au
Aphelion distance 1.0573 au
Asc. node-Earth separation -0.64141 au
Desc. node-Earth separation 0.04241 au
Earth MOID 0.00959 au
Orbital period 215.309 days
Date of orbit computation   Oct 14 15:33
Observational summary
Optical observations (Discarded) 145 (0)
Radar observations (Discarded) 1 (0)
Arc length 7291 days
Unobserved 414 days

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Ephemeris
(Epoch 58780 MJD)
Right Ascension 267.404 deg
Declination -22.5134 deg
V Magnitude 26.01 mag
Solar Elongation -57.6 deg
Galactic Latitude 2.55 deg
Rate 1.155 deg/day
Direction 92.879 deg

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