AstDyS-2

Asteroids - Dynamic Site
AstDyS ∴ Objects ∴ 1999RA21 ∴ Summary
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(121224) 1999RA21  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 1.95618 9.093e-09 au
e 0.084637 8.685e-08
i 18.42 1.061e-05 deg
Ω 348.727 2.122e-05 deg
ω 22.483 6.396e-05 deg
M 335.64 5.884e-05 deg

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Other useful info
Absolute Magnitude (H)    16.6 mag
Slope parameter (G)    0.15 mag
Perihelion 1.7906 au
Aphelion 2.1217 au
Asc. node-Earth separation 0.79455 au
Desc. node-Earth separation 1.11232 au
Earth MOID 0.79241 au
Orbital period 999.336 days
Date of orbit computation  Oct 31 06:12
Observational summary
Optical observations (Discarded) 449 (5)
Radar observations (Discarded) 0 (0)
Arc length 7524.85 days
Unobserved 101 days

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Ephemeris at epoch 58503 MJD
Right Ascension 353.305 deg
Declination 7.38453 deg
V Magnitude 20.76 mag
Solar Elongation -57.94 deg
Galactic Latitude -50.63 deg
Rate 0.56 deg/day
Direction 60.885 deg

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