Feature/183 sun point #191
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Description
This module computes a reference attitude for a Sun-pointing spacecraft. The reference is defined such that the body-frame-defined axis is aligned with the direction of the Sun relative to the spacecraft. A roll rate can be defined by the user such that the reference frame rolls about the sunline at a constant rate. This ensures constant pointing towards the Sun while mitigating solar radiation pressure effects.
Verification
A unit test is provided to test the accuracy of the pointing and the angular velocity of the reference given the requested roll rate.
Documentation
Documentation is provided.
Future work
N/A