ABSTRACT:  A computer code is described for the calculation of light-scattering properties of randomly oriented, axially symmetric coated particles, in the framework of the T-matrix theory.  The underlying mathematical background is outlined briefly and convergence procedures are discussed.  After outlining the input-output interaction between user and code, benckmark results are presented for two distinct shapes: coated, centered spheroids and offset coated spheres.

Keywords: T-matrix, nonspherical scatterers, coated particles, Fortran code