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Proceedings Paper

BLAST autonomous daytime star cameras
Author(s): Marie Rex; Edward Chapin; Mark J. Devlin; Joshua Gundersen; Jeff Klein; Enzo Pascale; Donald Wiebe
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Paper Abstract

We have developed two redundant daytime star cameras to provide the fine pointing solution for the balloon-borne submillimeter telescope, BLAST. The cameras are capable of providing a reconstructed pointing solution with an absolute accuracy < 5". They are sensitive to stars down to magnitudes ~ 9 in daytime float conditions. Each camera combines a 1 megapixel CCD with a 200mm f/2 lens to image a 2° × 2.5° field of the sky. The instruments are autonomous. An internal computer controls the temperature, adjusts the focus, and determines a real-time pointing solution at 1 Hz. The mechanical details and flight performance of these instruments are presented.

Paper Details

Date Published: 29 June 2006
PDF: 8 pages
Proc. SPIE 6269, Ground-based and Airborne Instrumentation for Astronomy, 62693H (29 June 2006); doi: 10.1117/12.671965
Show Author Affiliations
Marie Rex, Univ. of Pennsylvania (United States)
Edward Chapin, Univ. of British Columbia (Canada)
Mark J. Devlin, Univ. of Pennsylvania (United States)
Joshua Gundersen, Univ. of Miami (United States)
Jeff Klein, Univ. of Pennsylvania (United States)
Enzo Pascale, Univ. of Toronto (Canada)
Donald Wiebe, Univ. of Toronto (Canada)

Published in SPIE Proceedings Vol. 6269:
Ground-based and Airborne Instrumentation for Astronomy
Ian S. McLean; Masanori Iye, Editor(s)

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