This file contains the user-defined coordinates of the probe points, at which variable values can be sampled. The format is:
nmbr_probes x1 x2 x3 x1 x2 x3 x1 x2 x3 .. .. .. .. .. .. .. .. ..
where:
nmbr_probes(32-bit integer) is the number of probesxi, i=1,2,3(64-bit double precision) are the Cartesian components of the coordinates of each probe.