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AstDyS ∴ Objects ∴ 1990ST9 ∴ Summary
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(100026) 1990ST9  ▹ 
SUMMARY
Keplerian elements at epoch
58800.0 MJD
Value 1-σ variation Units
a 2.42364 1.825e-08 au
e 0.185475 4.716e-08
i 3.079 5.593e-06 deg
Ω 49.425 9.419e-05 deg
ω 268.24 9.662e-05 deg
M 288.59 2.901e-05 deg

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Other useful info
Absolute Magnitude (H)    15.7 mag
Slope parameter (G)    0.15 mag
Perihelion 1.9741 au
Aphelion 2.8732 au
Asc. node-Earth separation 1.36353 au
Desc. node-Earth separation 1.31928 au
Earth MOID 0.96424 au
Orbital period 1378.16 days
Date of orbit computation  Oct 21 18:25
Observational summary
Optical observations (Discarded) 673 (5)
Radar observations (Discarded) 0 (0)
Arc length 10484.1 days
Unobserved 173 days

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Ephemeris at epoch 58807 MJD
Right Ascension 227.505 deg
Declination -17.628 deg
V Magnitude 20.45 mag
Solar Elongation 7.16 deg
Galactic Latitude 34.04 deg
Rate 0.492 deg/day
Direction 106.791 deg

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