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AstDyS ∴ Objects ∴ 1999RS221 ∴ Summary
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(21777) 1999RS221  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.97421 1.73e-08 au
e 0.02436 4.367e-08
i 8.389 3.989e-06 deg
Ω 275.435 2.874e-05 deg
ω 230.263 9.526e-05 deg
M 150.651 8.958e-05 deg

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Other useful info
Absolute Magnitude (H)    14.0 mag
Slope parameter (G)    0.15 mag
Perihelion 2.9018 au
Aphelion 3.0467 au
Asc. node-Earth separation 2.00293 au
Desc. node-Earth separation 1.94408 au
Earth MOID 1.92375 au
Orbital period 1873.51 days
Date of orbit computation  apr 23 19:50
Observational summary
Optical observations (Discarded) 1801 (5)
Radar observations (Discarded) 0 (0)
Arc length 10076.7 days
Unobserved 282 days

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Ephemeris at epoch 60426 MJD
Right Ascension 322.096 deg
Declination -11.0388 deg
V Magnitude 19.83 mag
Solar Elongation 75.05 deg
Galactic Latitude -39.78 deg
Rate 0.255 deg/day
Direction 62.933 deg

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