{HEAD ~ The method} 7, wherein {TAIL ~ a portion} of said non SATPS position determination data is acquired by an instrument for sensing a magnetic field 
{ HEAD ~ The method } 7 , wherein { TAIL ~ a portion } of said non SATPS position determination data is acquired by an instrument for sensing a magnetic field
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH