Abstract: Mobile system apparatus for accurately determining the location of a designated object, spaced apart from the apparatus, without having to approach the designated object. The invention uses a Satellite Positioning System (SATPS), such as GPS or GLONASS, to determine the SATPS location of a first reference SATPS station, whose location is known with high accuracy, and of a second mobile SATPS station. The second mobile SATPS station uses two SATPS signal antennas, spaced apart a known distance but arbitrarily oriented. SATPS antennas at the first and second SATPS stations each receive SATPS signals from a plurality of SATPS satellites that can be used to determine the location of each antenna. The location of each SATPS antenna may be determined using differential corrections for the location of the first SATPS station antenna. The locations of the two SATPS signal antennas at the second SATPS station define a baseline for purposes of determination angular orientation.