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AstDyS ∴ Objects ∴ 2001OB91 ∴ Summary
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(189646) 2001OB91  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.30459 7.872e-09 au
e 0.181742 4.717e-08
i 7.706 5.713e-06 deg
Ω 285.549 3.014e-05 deg
ω 61.198 3.608e-05 deg
M 145.695 1.636e-05 deg

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Other useful info
Absolute Magnitude (H)    17.2 mag
Slope parameter (G)    0.15 mag
Perihelion 1.8857 au
Aphelion 2.7234 au
Asc. node-Earth separation 1.03226 au
Desc. node-Earth separation 1.45985 au
Earth MOID 0.89203 au
Orbital period 1277.88 days
Date of orbit computation  apr 23 20:29
Observational summary
Optical observations (Discarded) 486 (2)
Radar observations (Discarded) 0 (0)
Arc length 10287.8 days
Unobserved 80 days

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Ephemeris at epoch 60440 MJD
Right Ascension 129.496 deg
Declination 12.8912 deg
V Magnitude 22.57 mag
Solar Elongation -79.07 deg
Galactic Latitude 29.39 deg
Rate 0.255 deg/day
Direction 103.083 deg

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