Parallel processing is being used to improve the catalog of earth orbiting satellites and for problems associated with the catalog. Initial efforts centered around using SIMD parallel processors to perform debris conjunction analysis and satellite dynamics studies.
More recently, the availability of cheap super computing processors and parallel processing software such as PVM have enabled the reutilization of existing astrodynamics software in distributed parallel processing environments. Computions, once taking many days with traditional mainframes, are now being performed in only a few hours.
Efforts underway for the US Naval Space Command include conjunction prediction, uncorrelated target processing and a new space object catalog based on performing orbit determination and prediction with special perturbations methods.