0.
0.5

         1000. 100. 0.78 0.
         1000.
         0.314159265358979323846264338327950288419716
         128
         2.0e-6 2.4e-6

        By using a cleverly pre-computed mask, on can avoid computing
        pixels that are known to be black. The path is normally either
        absolute or relative to the XML file, but it is interpreted as
        relative to the working directory if prefixed with "`pwd`/" :
        `pwd`/example-startrace.fits

2.
0. 0. 0.037037
600. 9. 1.5707999999999999741 0
6000
0
0.1
50.
Spectrum
2
0.