Open Hardware and Software Star Tracker: An Opportunity for Collaboration in the Emerging Cubesat Community

Samuel T. Gutierrez; Cesar I. Fuentes; Marcos A. Diaz

doi:10.20944/preprints201703.0111.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 16 March 2017 / Approved: 16 March 2017 / Online: 16 March 2017 (07:12:22 CET)

We present an open-source Star Tracker (ST) for Attitude Determination. Our implementation makes use of open source software of common usage in astronomy running on a Raspberry Pi 2 platform. The developed platform is open and available for parties interested in further development. Evaluation of the system showed that the ST is suitable for Cubesats of 2U or larger. The ST platform is capable of solving the Lost-In-Space (LIS) problem. Currently, the average accuracy reached of the algorithm is close to 5 seconds of arc with an average processing time of 75 seconds. However, a average accuracy of about 3 minutes of arc can be reached with 35 seconds in average processing time. We also describe the evaluation procedure, the found conclusions of this procedure, in particular the section of the algorithm where most of the processing time is spent and other possible source of errors not included in this study.

star tracker; attitude determination; CubeSat

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Open Hardware and Software Star Tracker: An Opportunity for Collaboration in the Emerging Cubesat Community

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