Theoretical Limits of Star Sensor Accuracy
Abstract
To achieve mass, power, and cost reduction, there is a trend to reduce the volume of many instruments aboard spacecraft, especially for small spacecraft (cubesats or nanosats) with very limited mass, volume and power budgets. With the current trend of miniaturizing spacecraft instruments one could naturally ask if is there a physical limit to this process for star sensors. This paper shows that there is a fundamental limit on star sensor accuracy, which depends on stellar distribution, star sensor dimensions and exposure time. An estimate of such limit is given for our location in the galaxy.
Keywords
Cite
@article{arxiv.1910.00558,
title = {Theoretical Limits of Star Sensor Accuracy},
author = {Marcio Afonso Arimura Fialho and Daniele Mortari},
journal= {arXiv preprint arXiv:1910.00558},
year = {2025}
}
Comments
Thoroughly revised and extended version of a chapter of a doctorate thesis published in 2017. Being consireded for publication in a peer reviewed journal