Imager lens for star sensor in the Faraday Dragon rideshare mission

This paper presents the design and performance of the imager lens for the star sensor in the FORMOSAT-8B remote sensing satellites program, which is also asked to be the candidate lens, implemented for the Faraday Dragon rideshare mission. The lens, designed with a dual-Cooke refractive system, is optimized for a wide field of view and minimal aberrations, essential for capturing distant stars. The design process follows six key steps, from defining project goals to collaborating with integration teams. The lens exhibits high performance, achieving a success rate of over 95% in attitude determination at a slew rate of 0.8°/sec under specific conditions.