| 1. | The inner walls are steep and free from impact erosion.
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| 2. | This crater formation has been heavily worn and eroded by impact erosion.
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| 3. | The rugged rim of this crater has been heavily worn by impact erosion.
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| 4. | The remaining rim edge is rounded from impact erosion.
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| 5. | Faint streaks of rampart is low, wide, and worn from impact erosion.
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| 6. | The outer rim of this crater has undergone some wear due to impact erosion.
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| 7. | Gradually the crater and its ejecta undergo impact erosion from micrometeorites and smaller impacts.
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| 8. | This formation has not been notably worn by impact erosion, and is otherwise undistinguished.
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| 9. | This crater retains a circular rim, but it has been worn by impact erosion.
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| 10. | The rim has been softened and modified by impact erosion, particularly to the northeast.
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