Impact Calculator

By H. Jay Melosh and Ross A. Beyer

This is a short routine to evaluate the scaling equations to determine the diameter of a crater given details on the nature of the projectile, conditions of impact, and state of the target. The transient crater diameter is evaluated by three independent methods, yield scaling, pi-scaling and Gault's semi-empirical relations supplemented by rules on how crater size depends on gravity and angle of impact.

See Melosh, Impact Cratering, chapter 7 for more details

Compute crater size from given projectile size

Compute projectile size from given crater size

Download the FORTRAN 77 program Crater (right-click and choose Save Link As)

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