CLARREO Pathfinder solar diffuser pre-flight calibration

Georgi Georgiev; Julia Barsi; Nathan Kelley; Elena Georgieva; Yana Williams; Paul Smith; Anthony Barsic

doi:10.1117/12.3034029

20 November 2024 CLARREO Pathfinder solar diffuser pre-flight calibration

Georgi Georgiev, Julia Barsi, Nathan Kelley, Elena Georgieva, Yana Williams, Paul Smith, Anthony Barsic

Proceedings Volume 13192, Sensors, Systems, and Next-Generation Satellites XXVIII; 1319217 (2024) https://doi.org/10.1117/12.3034029
Event: Remote Sensing, 2024, Edinburgh, United Kingdom

Conference Poster

Abstract

Climate Absolute Radiance and Refractivity Observatory (CLARREO) Pathfinder (CPF) mission’s Hyperspectral Imager for Climate Science (HySICS) instrument’s transmissive flight diffuser calibration is presented. The absolute Bidirectional Transmittance Distribution Function (BTDF) measurement of the transmissive diffuser is needed to calculate the instrument’s absolute efficiency. Along with a known solar irradiance source such as Total Solar Irradiance Sensor (TSIS), it can provide an absolute irradiance measurement path on orbit, with NIST traceability. This provides an additional path for CPF to cross compare with other on orbit sensors’ measurement such as Visible-Infrared Imaging Radiometer Suite (VIIRS), Clouds and the Earth’s Radiant Energy System (CERES). The flight diffuser was calibrated at NASA’s Goddard Space Flight Center (GSFC) using the Facility’s Optical Scatterometer.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Georgi Georgiev, Julia Barsi, Nathan Kelley, Elena Georgieva, Yana Williams, Paul Smith, and Anthony Barsic "CLARREO Pathfinder solar diffuser pre-flight calibration", Proc. SPIE 13192, Sensors, Systems, and Next-Generation Satellites XXVIII, 1319217 (20 November 2024); https://doi.org/10.1117/12.3034029

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