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AstDyS ∴ Objects ∴ 1991RY21 ∴ Summary
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(9347) 1991RY21  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.40955 6.12e-09 au
e 0.158718 2.277e-08
i 3.309 2.326e-06 deg
Ω 101.884 5.835e-05 deg
ω 128.838 5.947e-05 deg
M 350.297 1.286e-05 deg

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Other useful info
Absolute Magnitude (H)    13.9 mag
Slope parameter (G)    0.15 mag
Perihelion 2.0271 au
Aphelion 2.792 au
Asc. node-Earth separation 1.62628 au
Desc. node-Earth separation 1.11925 au
Earth MOID 1.01844 au
Orbital period 1366.16 days
Date of orbit computation  feb 22 01:52
Observational summary
Optical observations (Discarded) 5367 (572)
Radar observations (Discarded) 0 (0)
Arc length 16376.6 days
Unobserved 79 days

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Ephemeris at epoch 60420 MJD
Right Ascension 236.96 deg
Declination -14.648 deg
V Magnitude 16.39 mag
Solar Elongation 151.62 deg
Galactic Latitude 30.2 deg
Rate 0.122 deg/day
Direction -75.538 deg

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