AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1998SP9 ∴ Summary
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(162114) 1998SP9  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.76902 2.411e-08 au
e 0.195793 6.407e-08
i 4.419 7.012e-06 deg
Ω 122.612 0.0001054 deg
ω 195.409 0.0001072 deg
M 160.315 2.102e-05 deg

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Other useful info
Absolute Magnitude (H)    16.2 mag
Slope parameter (G)    0.15 mag
Perihelion 2.2269 au
Aphelion 3.3112 au
Asc. node-Earth separation 2.29691 au
Desc. node-Earth separation 1.22376 au
Earth MOID 1.21298 au
Orbital period 1683.02 days
Date of orbit computation  Oct 31 06:38
Observational summary
Optical observations (Discarded) 229 (3)
Radar observations (Discarded) 0 (0)
Arc length 7054.66 days
Unobserved 434 days

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Ephemeris at epoch 58563 MJD
Right Ascension 139.661 deg
Declination 18.3384 deg
V Magnitude 21.54 mag
Solar Elongation -136.52 deg
Galactic Latitude 40.51 deg
Rate 0.103 deg/day
Direction -70.355 deg

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