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AstDyS ∴ Objects ∴ 1998ST57 ∴ Summary
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(101220) 1998ST57  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.47698 1.167e-08 au
e 0.186722 3.843e-08
i 2.234 4.818e-06 deg
Ω 100.453 0.0001191 deg
ω 211.967 0.0001204 deg
M 230.746 2.101e-05 deg

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Other useful info
Absolute Magnitude (H)    16.0 mag
Slope parameter (G)    0.15 mag
Perihelion 2.0145 au
Aphelion 2.9395 au
Asc. node-Earth separation 1.85731 au
Desc. node-Earth separation 1.04737 au
Earth MOID 1.00049 au
Orbital period 1423.91 days
Date of orbit computation  apr 23 20:09
Observational summary
Optical observations (Discarded) 804 (7)
Radar observations (Discarded) 0 (0)
Arc length 11310.1 days
Unobserved 48 days

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Ephemeris at epoch 60425 MJD
Right Ascension 158.443 deg
Declination 12.0566 deg
V Magnitude 20.77 mag
Solar Elongation -120.6 deg
Galactic Latitude 54.41 deg
Rate 0.014 deg/day
Direction -126.139 deg

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