AstDyS-2

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AstDyS ∴ Objects ∴ 1998SM99 ∴ Summary
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(120923) 1998SM99  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 3.06035 2.505e-08 au
e 0.086445 5.248e-08
i 9.939 5.985e-06 deg
Ω 358.646 2.635e-05 deg
ω 31.591 4.27e-05 deg
M 258.529 3.191e-05 deg

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Other useful info
Absolute Magnitude (H)    15.1 mag
Slope parameter (G)    0.15 mag
Perihelion 2.7958 au
Aphelion 3.3249 au
Asc. node-Earth separation 1.82589 au
Desc. node-Earth separation 2.28342 au
Earth MOID 1.80515 au
Orbital period 1955.49 days
Date of orbit computation  apr 23 20:13
Observational summary
Optical observations (Discarded) 625 (1)
Radar observations (Discarded) 0 (0)
Arc length 9042.91 days
Unobserved 310 days

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Ephemeris at epoch 60426 MJD
Right Ascension 308.229 deg
Declination -29.4389 deg
V Magnitude 20.87 mag
Solar Elongation 92.67 deg
Galactic Latitude -33.79 deg
Rate 0.178 deg/day
Direction 88.655 deg

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