Azimuth output angles (in degrees) in increasing order.  

phi values

 
The radiance is output at phi and umu.

  • Sensor in the North (looking South): 0 deg

  • Sensor in the East (looking West): 90 deg

  • Sensor in the South (looking North): 180 deg

  • Sensor in the West (looking East): 270 deg

For all one-dimensional solvers the absolute azimuth does not matter, but only the relative azimuth phi-phi0.