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AstDyS ∴ Objects ∴ McDonalda ∴ Summary
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(991) McDonalda  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 3.13732 9.822e-09 au
e 0.161886 2.622e-08
i 2.07 3.07e-06 deg
Ω 63.191 8.636e-05 deg
ω 253.741 8.687e-05 deg
M 127.981 9.905e-06 deg

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Other useful info
Absolute Magnitude (H)    11.3 mag
Slope parameter (G)    0.15 mag
Perihelion 2.6294 au
Aphelion 3.6452 au
Asc. node-Earth separation 2.21288 au
Desc. node-Earth separation 1.91064 au
Earth MOID 1.61676 au
Orbital period 2029.73 days
Date of orbit computation  feb 22 01:50
Observational summary
Optical observations (Discarded) 4754 (49)
Radar observations (Discarded) 0 (0)
Arc length 36988.1 days
Unobserved 77 days

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Ephemeris at epoch 60419 MJD
Right Ascension 86.1587 deg
Declination 24.5067 deg
V Magnitude 17.76 mag
Solar Elongation -57.41 deg
Galactic Latitude -2.5 deg
Rate 0.254 deg/day
Direction 88.458 deg

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