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AstDyS ∴ Objects ∴ 1990ST9 ∴ Summary
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(100026) 1990ST9  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 2.42342 1.981e-08 au
e 0.185312 4.843e-08
i 3.079 5.997e-06 deg
Ω 49.426 9.51e-05 deg
ω 268.302 9.752e-05 deg
M 184.002 2.831e-05 deg

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Other useful info
Absolute Magnitude (H)    15.7 mag
Slope parameter (G)    0.15 mag
Perihelion 1.9743 au
Aphelion 2.8725 au
Asc. node-Earth separation 1.36265 au
Desc. node-Earth separation 1.31638 au
Earth MOID 0.96307 au
Orbital period 1377.98 days
Date of orbit computation  Dec 20 14:24
Observational summary
Optical observations (Discarded) 620 (3)
Radar observations (Discarded) 0 (0)
Arc length 9982.02 days
Unobserved 465 days

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Ephemeris at epoch 58580 MJD
Right Ascension 165.624 deg
Declination 10.1781 deg
V Magnitude 19.91 mag
Solar Elongation -146.02 deg
Galactic Latitude 59.25 deg
Rate 0.166 deg/day
Direction -75.319 deg

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