Radiometric calibration transfer chain from primary standards to the end-to-end Hyperion sensor

Peter J. Jarecke; Karen E. Yokoyama

doi:10.1117/12.494252

15 November 2000 Radiometric calibration transfer chain from primary standards to the end-to-end Hyperion sensor

Peter J. Jarecke, Karen E. Yokoyama

Proceedings Volume 4135, Earth Observing Systems V; (2000) https://doi.org/10.1117/12.494252
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

This paper describes the calibration transfer path from primary standards representing fundamental physical quantities through the calibration radiance source used in Hyperion instrument level absolute calibration. The calibration transfer path and hardware design of the primary and secondary standards and their validation for end-to-end calibration of the sensor are presented. The primary standards reside at the TRW Radiometric Scale Facility and include two high quantum efficiency Silicon photodiode trap detectors; an electrically self-calibrated pyroelectric detector serves as a secondary standard for crosscheck. The end-to-end sensor calibration is accomplished with a Calibration Panel Assembly (CPA) source, which is illuminated by a NIST traceable FEL 1000 transfer standard lamp. An independent crosscheck of the Spectralon reflectance properties is made with a transfer radiometer. An error analysis of the transfer path is presented. The basic strategy of the Hyperion end-to-end calibration is to reduce the size of the sensor responsivity error tree and to provide control of systematic errors as much as possible through cross-calibration.

Citation Download Citation

Peter J. Jarecke and Karen E. Yokoyama "Radiometric calibration transfer chain from primary standards to the end-to-end Hyperion sensor", Proc. SPIE 4135, Earth Observing Systems V, (15 November 2000); https://doi.org/10.1117/12.494252

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