% th, x,y,data
3,-50,-50, -0.80064248
3,  0,-50, -1.56457492
"3, 50,-50,	   NaN"
3,-50,  0,  1.18665854
3, 50,  0, -1.41419930
3,-50, 50,         NaN
3,  0, 50,  0.95847406
3, 50, 50, -0.43912863