I have some "latitude" and "longitude" data that describes the Silverstone motor racing circuit in the UK. The coordinates look something like this:
latitude longitude +03124.27986 +00061.07652 +03124.27902 +00061.06950 +03124.27866 +00061.06632 +03124.27734 +00061.05942 +03124.27722 +00061.05852 +03124.27710 +00061.05780
These are clearly not "real" degrees & minutes latitudes and longitudes, since the latitudes aren't even valid, and the longitudes are clearly wrong for a place in the UK.
How do I identify the coordinate system used here?
The data is from Circuit Tools, which is a free program http://www.vboxmotorsport.co.uk/index.php/en/products/performance-meters/2-products/39-circuit-tools-driver-analysis-software . Once installed, the data is in C:\ProgramData\Racelogic\CIR Files\
The files are also available independently of the program here: http://www.vboxmotorsport.co.uk/index.php/en/products/performance-meters/performancebox/12-products/video-loggers/35-circuit-tools-track-database#u
Another set of coordinates in the same format, for a Singapore racetrack looks like
latitude longitude +00077.47468 -06231.29347 +00077.47699 -06231.29440 +00077.47890 -06231.29519 +00077.47957 -06231.29553 +00077.47959 -06231.29644