Reconstructing the attitude of the GRACE-FO mission based on fusion of star sensor, gyroscope and steering mirror data

On May 22, 2018, the Gravity Recovery and Climate Experiment Follow On (GRACE-FO) mission was launched with the goal to map the spatiotemporal variations in the Earth's gravity field and to extend the 15-year monthly mass change observations of its predecessor, the GRACE mission. Similarly to GRACE, the measurement principle of GRACE-FO is based...

Development an Verification of the Electro-Optical and Software Modules of the Facet Nano Star Sensor

This Thesis report is written for the space community, specially for people interested in the field of nanosatellites, who know how star trackers work, but are unfamiliar with their operations and limitations in an earth observation mission. To introduce users to the topic, this document is primarily concerned with a single aperture star tracker...