Fluctuating sky emission in airborne infrared astronomy: Measurements and interpretation

During a Spacelab simulation mission onboard the CV-990 aircraft a number of measurements have been performed to investigate the so-called sky-noise, a phenomenon limiting astronomical observations carried out with airborne telescopes. The experimental system consisted of a 32-cm telescope and a fou...

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Bibliographic Details
Published in:Infrared physics 1978-01, Vol.18 (3), p.157-171
Main Authors: Wijnbergen, J.J., Léna, P., Celnikier, L.M.
Format: Article
Language:English
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Summary:During a Spacelab simulation mission onboard the CV-990 aircraft a number of measurements have been performed to investigate the so-called sky-noise, a phenomenon limiting astronomical observations carried out with airborne telescopes. The experimental system consisted of a 32-cm telescope and a four channel infrared photometer equipped with a field-of-view selector. The data show that the sky-noise depends on the chopping frequency, the wavelength and the field-of-view. The work has been carried out taking into account a number of stratospheric environmental parameters. Beside this a turbulent model of the stratosphere has been developed, which appears to be consistent with the observations and suggests future developments.
ISSN:0020-0891
DOI:10.1016/0020-0891(78)90027-1