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RSS FeedsSensors, Vol. 19, Pages 5355: Theoretical Limits of Star Sensor Accuracy (Sensors)

 
 

5 december 2019 10:02:38

 
Sensors, Vol. 19, Pages 5355: Theoretical Limits of Star Sensor Accuracy (Sensors)
 


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 this limit is given for our location in the galaxy.


 
178 viewsCategory: Chemistry, Physics
 
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