Poor man's fast geometric raytrace, relatively straightforward, under-featured stand-in for ZEMAX. Bring your own Numerical Recipes. By NUMREC's licensing agreement, I'm not permitted to include that source code within this repository. You will also need a working copy of CFITSIO to compile & use. For the time being this repository includes only the scripts and executables necessary to reproduce defocused meteor images as would be imaged by the LSST telescope and camera, reflected by optical design prescriptions version 3.3. These currently do not reflect changes due to physical details of the as-delivered M1/M3, M2, L1, L2, filters, nor L3. Stay tuned!