The spacial was the unit of measurement used in the vast majority of instances, by both rebel and Federation crews. The Liberator had a standard orbital distance of 1000 spacials. This was roughly also the maximum range of its teleport system. Establishing the actual size of a single spacial is almost impossible due to the inconsistency of sources. On most occasions detector ranges were in the millions of spacials, but sometimes ships would only register within a thousand spacials' distance.