- 9589 Deridder
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Deridder Discovery and designationDiscovered by E. W. Elst Discovery site European Southern Observatory Discovery date November 21, 1990 DesignationsMPC designation 9589 Alternate name(s) 1990 WU5 Epoch May 14, 2008 Ap 2.7458329 Peri 2.4427319 Eccentricity 0.0584171 Orbital period 1526.2451850 Mean anomaly 17.41579 Inclination 4.15824 Longitude of ascending node 133.51718 Argument of peri 344.59348 Absolute magnitude (H) 14.3 9589 Deridder (1990 WU5) is a main-belt asteroid discovered on November 21, 1990 by E. W. Elst at the European Southern Observatory.
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