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Experimental Astronomy

, Volume 21, Issue 3, pp 169–187 | Cite as

Design of a high update-rate star sensor for arcsec-level attitude determination from balloon-borne X/γ astronomy platforms

  • G. Palladino
  • A. Basili
  • G. Di Cocco
  • T. Franceschini
  • G. Landini
  • S. Silvestri
  • A. Barbini
  • M. Galimberti
  • L. A. Gizzi
Original Article
  • 130 Downloads

Abstract

This paper describes the design of a star sensor based upon a high dynamic range CCD in order to reach an arcsec-level attitude determination in balloon-borne missions. A custom star identification software was developed and laboratory-tested on a prototype assembled using commercial components. A set of numerical simulations have been carried out to study the dependence on the pointing precision of the centroid position accuracy, the number of detected stars and the effect of the image focusing. Moreover, the role of the electronic noise and the discrete pixel structure on the light signals is identified by the analysis of numerical simulations. Laboratory tests confirm that the arcsec pointing accuracy with a 1 Hz update rate can be achieved with our combination of custom-developed software and selected hardware components.

Keywords

Star sensor CCD Balloon-borne Attitude control Pointing precision X-ray telescopes 

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Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • G. Palladino
    • 1
    • 2
  • A. Basili
    • 1
  • G. Di Cocco
    • 1
  • T. Franceschini
    • 1
  • G. Landini
    • 1
  • S. Silvestri
    • 1
  • A. Barbini
    • 3
  • M. Galimberti
    • 3
  • L. A. Gizzi
    • 3
  1. 1.IASF, Istituto di Astrofisica Spaziale e Fisica cosmica, INAF – Sezione di BolognaBolognaItaly
  2. 2.Dep. of PhysicsUniversity of FerraraFerraraItaly
  3. 3.IPCF, Istituto per i Processi Chimico-FisiciPisaItaly

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