Test Results From the Prelaunch Characterization Campaign of the Engineering Test Unit of the Ocean Color Instrument of NASA’s Plankton, Aerosol, Cloud and Ocean Ecosystem (PACE) Mission
This paper summarizes the results from the system level test campaign of the Engineering Test Unit (ETU) of the ‘Ocean Color Instrument’ (OCI), the primary payload of NASA’s ‘Plankton, Aerosol, Cloud and ocean Ecosystem’ (PACE) mission. The main goals of the test campaign were to optimize characteri...
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| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2022-06-01
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| Series: | Frontiers in Remote Sensing |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/frsen.2022.875863/full |
| _version_ | 1797963635352403968 |
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| author | Gerhard Meister Joseph J. Knuble Leland H. Chemerys Hyeungu Choi Nicholas R. Collins Robert E. Eplee Robert E. Eplee Ulrik Gliese Eric T. Gorman Kim Jepsen Samuel Kitchen-McKinley Shihyan Lee Shihyan Lee Jeffrey W. Mcintire Frederick S. Patt Frederick S. Patt Bradley C. Tse Eugene Waluschka P. Jeremy Werdell |
| author_facet | Gerhard Meister Joseph J. Knuble Leland H. Chemerys Hyeungu Choi Nicholas R. Collins Robert E. Eplee Robert E. Eplee Ulrik Gliese Eric T. Gorman Kim Jepsen Samuel Kitchen-McKinley Shihyan Lee Shihyan Lee Jeffrey W. Mcintire Frederick S. Patt Frederick S. Patt Bradley C. Tse Eugene Waluschka P. Jeremy Werdell |
| author_sort | Gerhard Meister |
| collection | DOAJ |
| description | This paper summarizes the results from the system level test campaign of the Engineering Test Unit (ETU) of the ‘Ocean Color Instrument’ (OCI), the primary payload of NASA’s ‘Plankton, Aerosol, Cloud and ocean Ecosystem’ (PACE) mission. The main goals of the test campaign were to optimize characterization procedures and evaluate system level performance relative to model predictions. Critical performance parameters such as radiometric gain, signal-to-noise ratio, polarization, instantaneous field-of-view, temperature sensitivity, relative spectral response and stability were evaluated for wavelengths from 600 to 2,260 nm and are in line with expectations. We expect the OCI flight unit to meet the PACE mission performance requirements. Building and testing the ETU has been extremely important for the development of the OCI flight unit (e.g. improved SNR by increasing the aperture, optimized thermal design), and we strongly recommend the inclusion of an ETU in the development of future spaceborne sensors that rely on novel technological designs. ETU testing led to the discovery of a hysteresis issue with the SWIR bands, and a correction algorithm was developed. Also, the coregistration of the SWIR bands relative to each other is worse than expected, but this was discovered too late in the schedule to remediate. |
| first_indexed | 2024-04-11T01:31:19Z |
| format | Article |
| id | doaj.art-4739aec354ba4d1a96842f20dcab532d |
| institution | Directory Open Access Journal |
| issn | 2673-6187 |
| language | English |
| last_indexed | 2024-04-11T01:31:19Z |
| publishDate | 2022-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Remote Sensing |
| spelling | doaj.art-4739aec354ba4d1a96842f20dcab532d2023-01-03T09:35:48ZengFrontiers Media S.A.Frontiers in Remote Sensing2673-61872022-06-01310.3389/frsen.2022.875863875863Test Results From the Prelaunch Characterization Campaign of the Engineering Test Unit of the Ocean Color Instrument of NASA’s Plankton, Aerosol, Cloud and Ocean Ecosystem (PACE) MissionGerhard Meister0Joseph J. Knuble1Leland H. Chemerys2Hyeungu Choi3Nicholas R. Collins4Robert E. Eplee5Robert E. Eplee6Ulrik Gliese7Eric T. Gorman8Kim Jepsen9Samuel Kitchen-McKinley10Shihyan Lee11Shihyan Lee12Jeffrey W. Mcintire13Frederick S. Patt14Frederick S. Patt15Bradley C. Tse16Eugene Waluschka17P. Jeremy Werdell18Ocean Ecology Lab, Goddard Space Flight Center, NASA, Greenbelt, MD, United StatesNASA Goddard Space Flight Center, Greenbelt, MD, United StatesScience Systems and Applications Inc., Lanham, MD, United StatesGlobal Science & Technology, Greenbelt, MD, United StatesTelophase Corporation at NASA’s Goddard Space Flight Center, Greenbelt, MD, United StatesOcean Ecology Lab, Goddard Space Flight Center, NASA, Greenbelt, MD, United StatesScience Applications International Corporation, Reston, VA, United StatesKBR, Greenbelt, MD, United StatesNASA GSFC Instrument Systems Engineering, Greenbelt, MD, United StatesScience Systems and Applications Inc., Lanham, MD, United StatesScience Systems and Applications Inc., Lanham, MD, United StatesOcean Ecology Lab, Goddard Space Flight Center, NASA, Greenbelt, MD, United StatesScience Applications International Corporation, Reston, VA, United StatesScience Systems and Applications Inc., Lanham, MD, United StatesOcean Ecology Lab, Goddard Space Flight Center, NASA, Greenbelt, MD, United StatesScience Applications International Corporation, Reston, VA, United StatesMicrotel, Greenbelt, MD, United States0Stellar Solutions, Chantilly, VA, United StatesOcean Ecology Lab, Goddard Space Flight Center, NASA, Greenbelt, MD, United StatesThis paper summarizes the results from the system level test campaign of the Engineering Test Unit (ETU) of the ‘Ocean Color Instrument’ (OCI), the primary payload of NASA’s ‘Plankton, Aerosol, Cloud and ocean Ecosystem’ (PACE) mission. The main goals of the test campaign were to optimize characterization procedures and evaluate system level performance relative to model predictions. Critical performance parameters such as radiometric gain, signal-to-noise ratio, polarization, instantaneous field-of-view, temperature sensitivity, relative spectral response and stability were evaluated for wavelengths from 600 to 2,260 nm and are in line with expectations. We expect the OCI flight unit to meet the PACE mission performance requirements. Building and testing the ETU has been extremely important for the development of the OCI flight unit (e.g. improved SNR by increasing the aperture, optimized thermal design), and we strongly recommend the inclusion of an ETU in the development of future spaceborne sensors that rely on novel technological designs. ETU testing led to the discovery of a hysteresis issue with the SWIR bands, and a correction algorithm was developed. Also, the coregistration of the SWIR bands relative to each other is worse than expected, but this was discovered too late in the schedule to remediate.https://www.frontiersin.org/articles/10.3389/frsen.2022.875863/fullocean coloraerosolscloudshyperspectralcalibrationcharacterization |
| spellingShingle | Gerhard Meister Joseph J. Knuble Leland H. Chemerys Hyeungu Choi Nicholas R. Collins Robert E. Eplee Robert E. Eplee Ulrik Gliese Eric T. Gorman Kim Jepsen Samuel Kitchen-McKinley Shihyan Lee Shihyan Lee Jeffrey W. Mcintire Frederick S. Patt Frederick S. Patt Bradley C. Tse Eugene Waluschka P. Jeremy Werdell Test Results From the Prelaunch Characterization Campaign of the Engineering Test Unit of the Ocean Color Instrument of NASA’s Plankton, Aerosol, Cloud and Ocean Ecosystem (PACE) Mission Frontiers in Remote Sensing ocean color aerosols clouds hyperspectral calibration characterization |
| title | Test Results From the Prelaunch Characterization Campaign of the Engineering Test Unit of the Ocean Color Instrument of NASA’s Plankton, Aerosol, Cloud and Ocean Ecosystem (PACE) Mission |
| title_full | Test Results From the Prelaunch Characterization Campaign of the Engineering Test Unit of the Ocean Color Instrument of NASA’s Plankton, Aerosol, Cloud and Ocean Ecosystem (PACE) Mission |
| title_fullStr | Test Results From the Prelaunch Characterization Campaign of the Engineering Test Unit of the Ocean Color Instrument of NASA’s Plankton, Aerosol, Cloud and Ocean Ecosystem (PACE) Mission |
| title_full_unstemmed | Test Results From the Prelaunch Characterization Campaign of the Engineering Test Unit of the Ocean Color Instrument of NASA’s Plankton, Aerosol, Cloud and Ocean Ecosystem (PACE) Mission |
| title_short | Test Results From the Prelaunch Characterization Campaign of the Engineering Test Unit of the Ocean Color Instrument of NASA’s Plankton, Aerosol, Cloud and Ocean Ecosystem (PACE) Mission |
| title_sort | test results from the prelaunch characterization campaign of the engineering test unit of the ocean color instrument of nasa s plankton aerosol cloud and ocean ecosystem pace mission |
| topic | ocean color aerosols clouds hyperspectral calibration characterization |
| url | https://www.frontiersin.org/articles/10.3389/frsen.2022.875863/full |
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