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AstDyS ∴ Objects ∴ Ulla ∴ Summary
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(909) Ulla  ▹ 
SUMMARY
Keplerian elements at epoch
58400.0 MJD
Value 1-σ variation Units
a 3.54498 1.965e-08 au
e 0.090082 3.902e-08
i 18.791 4.391e-06 deg
Ω 146.348 1.387e-05 deg
ω 232.989 2.683e-05 deg
M 91.327 2.235e-05 deg

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Other useful info
Absolute Magnitude (H)    8.8 mag
Slope parameter (G)    0.15 mag
Perihelion 3.2256 au
Aphelion 3.8643 au
Asc. node-Earth separation 2.72857 au
Desc. node-Earth separation 2.32304 au
Earth MOID 2.25993 au
Orbital period 2437.92 days
Date of orbit computation  Oct 31 04:55
Observational summary
Optical observations (Discarded) 2121 (55)
Radar observations (Discarded) 0 (0)
Arc length 38940.2 days
Unobserved 88 days

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Ephemeris at epoch 58470 MJD
Right Ascension 145.425 deg
Declination 7.55685 deg
V Magnitude 14.8 mag
Solar Elongation 120.42 deg
Galactic Latitude 41.05 deg
Rate 0.033 deg/day
Direction -16.07 deg

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