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Proceedings Paper • Open Access

Ratioing methods for in-flight response calibration of space-based spectro-radiometers, operating in the solar spectral region
Author(s): Dan Lobb

Paper Abstract

One of the most significant problems for space-based spectro-radiometer systems, observing Earth from space in the solar spectral band (UV through short-wave IR), is in achievement of the required absolute radiometric accuracy. Classical methods, for example using one or more sun-illuminated diffusers as reflectance standards, do not generally provide methods for monitoring degradation of the in-flight reference after pre-flight characterisation. Ratioing methods have been proposed that provide monitoring of degradation of solar attenuators in flight, thus in principle allowing much higher confidence in absolute response calibration. Two example methods are described. It is shown that systems can be designed for relatively low size and without significant additions to the complexity of flight hardware.

Paper Details

Date Published: 21 November 2017
PDF: 9 pages
Proc. SPIE 10568, International Conference on Space Optics — ICSO 2004, 105680D (21 November 2017); doi: 10.1117/12.2307987
Show Author Affiliations
Dan Lobb, Sira Technology Ltd. (United Kingdom)


Published in SPIE Proceedings Vol. 10568:
International Conference on Space Optics — ICSO 2004
Josiane Costeraste; Errico Armandillo, Editor(s)

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