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NEODyS ∴ Objects ∴ 1991RB ∴ Summary
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(152561) 1991RB  ▹ 
SUMMARY
Keplerian elements at epoch
58000.0 MJD
Value 1-σ variation Units
a 1.4544 6.606e-09 au
e 0.485761 6.638e-08
i 19.582 2.122e-05 deg
Ω 359.37 2.315e-05 deg
ω 68.87 3.257e-05 deg
M 258.937 3.463e-05 deg

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Other useful info
Absolute Magnitude (H)    19.0 mag
Slope parameter (G)    0.15 mag
Perihelion 0.7479 au
Aphelion 2.1609 au
Asc. node-Earth separation -0.05791 au
Desc. node-Earth separation 0.35276 au
Earth MOID 0.0388 au
Orbital period 640.654 days
Date of orbit computation   Oct 9 17:36
Observational summary
Optical observations (Discarded) 73 (6)
Radar observations (Discarded) 0 (0)
Arc length 13022 days
Unobserved 1707 days

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Ephemeris at epoch 58103 MJD
Right Ascension 304.541 deg
Declination -26.1971 deg
V Magnitude 22.02 mag
Solar Elongation -37.29 deg
Galactic Latitude -29.76 deg
Rate 0.742 deg/day
Direction 63.86 deg

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