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Discovery and designation
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| Discovered by | E. F. Helin |
| Discovery site | Palomar |
| Discovery date | April 8, 1991 |
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Designations
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| MPC designation | 6487 |
| Named after | Tony Spear |
| Alternate name(s) | 1991 GA1 |
| Epoch May 14, 2008 | |
| Ap | 3.0781711 |
| Peri | 1.6367095 |
| Eccentricity | 0.3057260 |
| Orbital period | 1322.0852766 |
| Mean anomaly | 210.33813 |
| Inclination | 21.25115 |
| Longitude of ascending node | 187.55582 |
| Argument of peri | 93.02242 |
| Absolute magnitude (H) | 13.4 |
6487 Tonyspear (1991 GA1) is a Mars-crossing asteroid discovered on April 8, 1991 by E. F. Helin at Palomar.
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