The angular range given in column 2 below is referenced to 0 near the center of the slit.


File name      anglular range (degrees)   angular step size (degrees)     lamp        channel     direction      slit
V33                 -0.06 to +0.06                  0.001                halogen        vis        spatial     surface
V36                 -0.04 to +0.04                  0.001                halogen        vis        spectral    atmosphere
V37                 -0.6 to +0.6                    0.01                 halogen        vis        spatial     atmosphere
M31                 -0.06 to +0.06                  0.01              mercury penray    muv        spatial     atmosphere
f_spatial_fov       -0.616 to +0.722               variable*            deuterium       fuv        spatial     atmosphere


*see "f_spatial_fov_angles" for a list of the angular postion of the manipulator