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Discovery and designation
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| Discovered by | Jean Mueller and J. D. Mendenhall |
| Discovery site | Palomar |
| Discovery date | October 28, 1989 |
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Designations
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| MPC designation | 11500 |
| Alternate name(s) | 1989 UR |
| Epoch January 4, 2010 | |
| Ap | 1.464147754807477 |
| Peri | .6954234352759343 |
| Eccentricity | .355961555266836 |
| Orbital period | 409.8309200491105 |
| Mean anomaly | 260.2726812879356 |
| Inclination | 10.30846538081064 |
| Longitude of ascending node | 234.4891931942051 |
| Argument of peri | 289.3802061101159 |
| Sidereal rotation period |
73 |
| Spectral type | B |
| Absolute magnitude (H) | 18.4 |
11500 Tomaiyowit (1989 UR) is an Apollo asteroid discovered on October 28, 1989 by Jean Mueller and J. D. Mendenhall on 28 October 1989 at the Palomar Observatory.[1]
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