New applications for Compact Optical Attitude Sensor (COATS) for space

A 5-DOFs compact optical sensor, named COATS, was recently realized at INRIM. Now the sensor head architecture, conceived through a modular approach, is reconfigured in different ways to address specific problems with a simplified design and a dedicated solution, retaining the necessary degrees of freedom while removing those not requested by the specific case. Some of the possible configurations are described together with the range and performance limits of the same. Furthermore the possibility of integrating the roll angle metrology in the system is described, opening the possibility of realizing a 6-DOF COATS.