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AstDyS ∴ Objects ∴ 1991RB ∴ Summary
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(152561) 1991RB  ▹ 
SUMMARY

Warning: This object is a Near Earth Asteroid. You can have more detailed information looking at
its home page on the NEODyS web site

Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 1.45456 5.731e-09 au
e 0.485697 1.045e-07
i 19.576 2.314e-05 deg
Ω 359.297 2.084e-05 deg
ω 68.948 2.956e-05 deg
M 167.426 3.772e-05 deg

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Other useful info
Absolute Magnitude (H)    19.1 mag
Slope parameter (G)    0.15 mag
Perihelion 0.7481 au
Aphelion 2.161 au
Asc. node-Earth separation -0.05676 au
Desc. node-Earth separation 0.35061 au
Earth MOID 0.03802 au
Orbital period 640.758 days
Date of orbit computation  apr 23 20:20
Observational summary
Optical observations (Discarded) 122 (6)
Radar observations (Discarded) 0 (0)
Arc length 15591.9 days
Unobserved 1472 days

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Ephemeris at epoch 60440 MJD
Right Ascension 269.782 deg
Declination -54.0767 deg
V Magnitude 22.5 mag
Solar Elongation 130.97 deg
Galactic Latitude -14.54 deg
Rate 0.298 deg/day
Direction -138.552 deg

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