# viewing azimuth angle derivations

1. viewing azimuth angle from sensor azimuth angle

   symbol | description | unit | variable name
   --- | --- | --- | ---
   \(\varphi_{S}\) | sensor azimuth angle | \(deg\) | sensor_azimuth_angle {:}
   \(\varphi_{V}\) | viewing azimuth angle | \(deg\) | viewing_azimuth_angle {:}

   The pattern : for the dimensions can represent {time}, or no dimensions at all.

   \[\varphi_{V} = 180 - \varphi_{S}\]