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Efficient absolute aspect determination of a balloon borne far infrared telescope using a solid state optical photometer

M. V. Naik·S. L. D'Costa·S. K. Ghosh·B. Mookerjea·D. K. Ojha·R. P. Verma
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Abstract

The observational and operational efficiency of the TIFR 1 meter balloon borne far infrared telescope has been improved by incorporating a multielement solid state optical photometer (SSOP) at the Cassegrain focus of the telescope. The SSOP is based on a 1-D linear photo diode array (PDA). The online and offline processing schemes of the PDA signals which have been developed, lead to improvement in the determination of absolute telescope aspect ($\sim$ 0\farcm8), which is very crucial for carrying out the observations as well as offline analysis. The SSOP and its performance during a recent balloon flight are presented here.

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M. V. Naik, S. L. D'Costa, S. K. Ghosh, B. Mookerjea, D. K. Ojha, R. P. Verma. 1999-10-12. Efficient absolute aspect determination of a balloon borne far infrared telescope using a solid state optical photometer. https://doi.org/10.1086/316504

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