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AstDyS ∴ Objects ∴ 1999SG4 ∴ Summary
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(21787) 1999SG4  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.577 1.053e-08 au
e 0.116277 3.189e-08
i 14.282 4.828e-06 deg
Ω 54.296 1.301e-05 deg
ω 108.74 2.519e-05 deg
M 202.247 2.08e-05 deg

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Other useful info
Absolute Magnitude (H)    13.1 mag
Slope parameter (G)    0.15 mag
Perihelion 2.2774 au
Aphelion 2.8766 au
Asc. node-Earth separation 1.65286 au
Desc. node-Earth separation 1.43957 au
Earth MOID 1.32678 au
Orbital period 1511.02 days
Date of orbit computation  apr 23 19:50
Observational summary
Optical observations (Discarded) 2939 (9)
Radar observations (Discarded) 0 (0)
Arc length 11742.4 days
Unobserved 140 days

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Ephemeris at epoch 60426 MJD
Right Ascension 16.3252 deg
Declination -1.78197 deg
V Magnitude 18.81 mag
Solar Elongation 22.96 deg
Galactic Latitude -64.44 deg
Rate 0.389 deg/day
Direction 65.175 deg

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