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AstDyS ∴ Objects ∴ 1991AC ∴ Summary
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(7821) 1991AC  ▹ 
SUMMARY
Keplerian elements at epoch
60400.0 MJD
Value 1-σ variation Units
a 2.88974 9.883e-09 au
e 0.015417 2.851e-08
i 2.878 3.145e-06 deg
Ω 57.821 6.452e-05 deg
ω 64.782 0.0001328 deg
M 268.4 0.0001154 deg

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Other useful info
Absolute Magnitude (H)    13.0 mag
Slope parameter (G)    0.15 mag
Perihelion 2.8452 au
Aphelion 2.9343 au
Asc. node-Earth separation 1.88294 au
Desc. node-Earth separation 1.89636 au
Earth MOID 1.86262 au
Orbital period 1794.26 days
Date of orbit computation  apr 23 19:47
Observational summary
Optical observations (Discarded) 3678 (13)
Radar observations (Discarded) 0 (0)
Arc length 12519 days
Unobserved 109 days

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Ephemeris at epoch 60425 MJD
Right Ascension 32.4796 deg
Declination 12.1996 deg
V Magnitude 18.34 mag
Solar Elongation 0.99 deg
Galactic Latitude -46.3 deg
Rate 0.4 deg/day
Direction 69.406 deg

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