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Discovery and designation
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| Discovered by | Carolyn S. Shoemaker |
| Discovery site | Palomar |
| Discovery date | October 9, 1980 |
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Designations
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| MPC designation | 3430 |
| Named after | William A. Bradfield |
| Alternate name(s) | 1980 TF4 |
| Epoch May 14, 2008 | |
| Ap | 3.0234123 |
| Peri | 2.4934639 |
| Eccentricity | 0.0960595 |
| Orbital period | 1673.3750413 |
| Mean anomaly | 50.61603 |
| Inclination | 4.43493 |
| Longitude of ascending node | 43.47208 |
| Argument of peri | 276.01344 |
| Absolute magnitude (H) | 12.4 |
3430 Bradfield (1980 TF4) is a main-belt asteroid discovered on October 9, 1980 by Carolyn S. Shoemaker at Palomar.
Named in honor of William A. Bradfield, rocket engineer of Dernancourt, South Australia. Discoverer of twelve comets, Bradfield has been chiefly responsible for the greatly increased rate of discovery of bright comets from the southern hemisphere during the 1970s and 1980s.
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