Document Type
Article
Publisher
NASA
Publication Date
11-8-2022
Journal Article Version
Accepted Manuscript
First Page
1
Last Page
8
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 License
Abstract
EXECUTIVE SUMMARY
The Ocean Color Instrument (OCI) to go on the Plankton, Aerosol, Cloud, ocean Ecology (PACE) Earth-observing satellite has a Short-wave infrared (SWIR) Detection Assembly (SDA). This SDA is used to measure upwelling radiation in seven discrete bands from 940 to 2260 nm. There are redundant measurements of each band for a total of 32 physical channels, which includes optical components through to detection. The relative spectral response (RSR) is measured for each channel, which is needed when accounting for the spectral distribution of sensed radiance. From the RSR, single-value performance metrics are computed including the center wavelength, the full width at half of the maximum (FWHM), and the full width at 1% of the maximum (FW1P). Besides in-band responses, the out-of-band rejection ratio (OOBRR) is also calculated for each of the channels, which is a measure of the sensitivity outside the band of interest. We find that all 32 SDA detection channels meet the spectral response requirements at the qualification temperatures at which tests were conducted.
Recommended Citation
Hedelius, Jacob K.; Squire, Kenneth J.; Peterson, James Q.; Blagojevic, Branimir; Gliese, Ulrik B.; Gorman, Eric T.; Moser, David K.; Rhodes, Zakk; Sevilla, Pedro; and Meister, Gerhard, "Spectral Responses of the PACE OCI Short-Wave Infrared Detection Assembly" (2022). Space Dynamics Laboratory Publications. Paper 287.
https://digitalcommons.usu.edu/sdl_pubs/287