Convert from spat to Scots foot

Unit Definition (spat)
The spat is an informal unit of distance formerly used by astronomers. The spat is equal to the terameter (Tm, or 10E12 meters). This is equivalent to about 6.6846 astronomical units. The origin of this usage is not clear; "spat" may be an acronym for "space unit" or "space-time".

Unit Definition (Scots foot)
The Scots foot is a traditional distance units in Scotland. The Scots foot equals 1.005 405 4 English foot (about 12.065 English inches or 30.645 centimeters). The English foot and statute mile, of course, are now official in Scotland.