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AstDyS ∴ Objects ∴ 1998SB128 ∴ Summary
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(55997) 1998SB128  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.74558 1.288e-08 au
e 0.084217 3.692e-08
i 4.979 5.216e-06 deg
Ω 65.333 4.715e-05 deg
ω 248.366 5.782e-05 deg
M 272.341 3.359e-05 deg

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Other useful info
Absolute Magnitude (H)    15.3 mag
Slope parameter (G)    0.15 mag
Perihelion 2.5144 au
Aphelion 2.9768 au
Asc. node-Earth separation 1.82739 au
Desc. node-Earth separation 1.63095 au
Earth MOID 1.50537 au
Orbital period 1661.69 days
Date of orbit computation  apr 23 19:58
Observational summary
Optical observations (Discarded) 1046 (2)
Radar observations (Discarded) 0 (0)
Arc length 9302.28 days
Unobserved 41 days

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Ephemeris at epoch 60425 MJD
Right Ascension 224.347 deg
Declination -13.606 deg
V Magnitude 19.08 mag
Solar Elongation 168.63 deg
Galactic Latitude 39.08 deg
Rate 0.21 deg/day
Direction -79.39 deg

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