A star tracker design for CubeSats

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dc.contributor.advisor Lightsey, E. Glenn
dc.creator McBryde, Christopher Ryan
dc.date.accessioned 2012-06-12T17:36:34Z
dc.date.available 2012-06-12T17:36:34Z
dc.date.created 2012-05
dc.date.issued 2012-06-12
dc.date.submitted May 2012
dc.identifier.uri http://hdl.handle.net/2152/ETD-UT-2012-05-4608
dc.description.abstract This research outlines a low-cost, low-power, arc-minute accurate star tracker that is designed for use on a CubeSat. The device is being developed at the University of Texas at Austin for use on two different 3-unit CubeSat missions. The hardware consists of commercial off-the-shelf parts designed for use in industrial machine vision systems and employs a 1024x768 grey-scale charge coupled device (CCD) sensor. The software includes the three standard steps in star tracking: centroiding, star identification, and attitude determination. Centroiding algorithms were developed in-house. The star identification code was adapted from the voting method developed by Kolomenkin, et al. Attitude determination was performed using Markley's singular value decomposition method. The star tracker was then tested with internal simulated star-fields. The resulting accuracy was less than an arcminute. It was concluded that this system is a viable option for CubeSats looking to improve their attitude determination. On-orbit demonstration of the system is planned when the star tracker flies on the planned CubeSat missions in 2013 or later. Further testing with external simulated star fields and night sky tests are also planned.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.subject Star tracker
dc.subject Star camera
dc.subject CubeSat
dc.subject Attitude determination
dc.subject Satellite
dc.subject Small satellite
dc.title A star tracker design for CubeSats
dc.date.updated 2012-06-12T17:36:43Z
dc.identifier.slug 2152/ETD-UT-2012-05-4608
dc.contributor.committeeMember D'Souza, Christopher
dc.description.department Aerospace Engineering
dc.type.genre thesis
dc.type.material text
thesis.degree.department Aerospace Engineering
thesis.degree.discipline Aerospace Engineering
thesis.degree.grantor University of Texas at Austin
thesis.degree.level Masters
thesis.degree.name Master of Science in Engineering

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