Prelaunch Spectral Characterization of the Operational Land Imager-2
The Landsat-9 satellite, launched in September 2021, carries the Operational Land Imager-2 (OLI-2) as one of its payloads. This instrument is a clone of the Landsat-8 OLI and its mission is to continue the operational land imaging of the Landsat program. The OLI-2 instrument is not significantly dif...
| Main Authors: | , , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-03-01
|
| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/16/6/981 |
| _version_ | 1827305114224820224 |
|---|---|
| author | Julia A. Barsi Eric Donley Michelle Goldman Thomas Kampe Brian L. Markham Brendan McAndrew Joel McCorkel Eric Morland Jeffrey A. Pedelty James Pharr Michael R. Rodriguez Timothy M. Shuman Cameron Stutheit Andrei B. Sushkov |
| author_facet | Julia A. Barsi Eric Donley Michelle Goldman Thomas Kampe Brian L. Markham Brendan McAndrew Joel McCorkel Eric Morland Jeffrey A. Pedelty James Pharr Michael R. Rodriguez Timothy M. Shuman Cameron Stutheit Andrei B. Sushkov |
| author_sort | Julia A. Barsi |
| collection | DOAJ |
| description | The Landsat-9 satellite, launched in September 2021, carries the Operational Land Imager-2 (OLI-2) as one of its payloads. This instrument is a clone of the Landsat-8 OLI and its mission is to continue the operational land imaging of the Landsat program. The OLI-2 instrument is not significantly different from OLI though the instrument-level pre-launch spectral characterization process was much improved. The focal plane modules used on OLI-2 were manufactured as spares for OLI and much of the spectral characterization of the components was performed for OLI. However, while the spectral response of the fully assembled OLI was characterized by a double monochromator system, the OLI-2 spectral characterization made use of the Goddard Laser for Absolute Measurement of Radiance (GLAMR). GLAMR is a system of tunable lasers that cover 350–2500 nm which are fiber-coupled to a 30 in integrating sphere permanently monitored by NIST-traceable radiometers. GLAMR allowed the spectral characterization of every detector of the OLI-2 focal plane in nominal imaging conditions. The spectral performance of the OLI-2 was, in general, much better than requirements. The final relative spectral responses (RSRs) represent the best characterization any Landsat instrument spectral response. This paper will cover the results of the spectral characterization from the component-level to the instrument-level of the Landsat-9 OLI-2. |
| first_indexed | 2024-04-24T17:51:39Z |
| format | Article |
| id | doaj.art-5fa04a50fc2b4367a2128f89d9f62961 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-04-24T17:51:39Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-5fa04a50fc2b4367a2128f89d9f629612024-03-27T14:02:33ZengMDPI AGRemote Sensing2072-42922024-03-0116698110.3390/rs16060981Prelaunch Spectral Characterization of the Operational Land Imager-2Julia A. Barsi0Eric Donley1Michelle Goldman2Thomas Kampe3Brian L. Markham4Brendan McAndrew5Joel McCorkel6Eric Morland7Jeffrey A. Pedelty8James Pharr9Michael R. Rodriguez10Timothy M. Shuman11Cameron Stutheit12Andrei B. Sushkov13NASA/GSFC Biospheric Sciences Laboratory, Greenbelt, MD 20771, USABall Aerospace and Technologies, Boulder, CO 80301, USABall Aerospace and Technologies, Boulder, CO 80301, USABall Aerospace and Technologies, Boulder, CO 80301, USANASA/GSFC Biospheric Sciences Laboratory, Greenbelt, MD 20771, USANASA/GSFC Biospheric Sciences Laboratory, Greenbelt, MD 20771, USANASA/GSFC Biospheric Sciences Laboratory, Greenbelt, MD 20771, USABall Aerospace and Technologies, Boulder, CO 80301, USABay Engineering Innovations, Inc., Boulder, CO 80301, USANorthrup Grumman, Sterling, VA 20166, USAHexagon US Federal, Chantilly, VA 20151, USAFibertek, Inc., Herndon, VA 20171, USABall Aerospace and Technologies, Boulder, CO 80301, USAGenesis Engineering Solutions, Inc., Lanham, MD 20706, USAThe Landsat-9 satellite, launched in September 2021, carries the Operational Land Imager-2 (OLI-2) as one of its payloads. This instrument is a clone of the Landsat-8 OLI and its mission is to continue the operational land imaging of the Landsat program. The OLI-2 instrument is not significantly different from OLI though the instrument-level pre-launch spectral characterization process was much improved. The focal plane modules used on OLI-2 were manufactured as spares for OLI and much of the spectral characterization of the components was performed for OLI. However, while the spectral response of the fully assembled OLI was characterized by a double monochromator system, the OLI-2 spectral characterization made use of the Goddard Laser for Absolute Measurement of Radiance (GLAMR). GLAMR is a system of tunable lasers that cover 350–2500 nm which are fiber-coupled to a 30 in integrating sphere permanently monitored by NIST-traceable radiometers. GLAMR allowed the spectral characterization of every detector of the OLI-2 focal plane in nominal imaging conditions. The spectral performance of the OLI-2 was, in general, much better than requirements. The final relative spectral responses (RSRs) represent the best characterization any Landsat instrument spectral response. This paper will cover the results of the spectral characterization from the component-level to the instrument-level of the Landsat-9 OLI-2.https://www.mdpi.com/2072-4292/16/6/981Landsat-9OLI-2GLAMRspectral characterizationrelative spectral responsetunable laser |
| spellingShingle | Julia A. Barsi Eric Donley Michelle Goldman Thomas Kampe Brian L. Markham Brendan McAndrew Joel McCorkel Eric Morland Jeffrey A. Pedelty James Pharr Michael R. Rodriguez Timothy M. Shuman Cameron Stutheit Andrei B. Sushkov Prelaunch Spectral Characterization of the Operational Land Imager-2 Remote Sensing Landsat-9 OLI-2 GLAMR spectral characterization relative spectral response tunable laser |
| title | Prelaunch Spectral Characterization of the Operational Land Imager-2 |
| title_full | Prelaunch Spectral Characterization of the Operational Land Imager-2 |
| title_fullStr | Prelaunch Spectral Characterization of the Operational Land Imager-2 |
| title_full_unstemmed | Prelaunch Spectral Characterization of the Operational Land Imager-2 |
| title_short | Prelaunch Spectral Characterization of the Operational Land Imager-2 |
| title_sort | prelaunch spectral characterization of the operational land imager 2 |
| topic | Landsat-9 OLI-2 GLAMR spectral characterization relative spectral response tunable laser |
| url | https://www.mdpi.com/2072-4292/16/6/981 |
| work_keys_str_mv | AT juliaabarsi prelaunchspectralcharacterizationoftheoperationallandimager2 AT ericdonley prelaunchspectralcharacterizationoftheoperationallandimager2 AT michellegoldman prelaunchspectralcharacterizationoftheoperationallandimager2 AT thomaskampe prelaunchspectralcharacterizationoftheoperationallandimager2 AT brianlmarkham prelaunchspectralcharacterizationoftheoperationallandimager2 AT brendanmcandrew prelaunchspectralcharacterizationoftheoperationallandimager2 AT joelmccorkel prelaunchspectralcharacterizationoftheoperationallandimager2 AT ericmorland prelaunchspectralcharacterizationoftheoperationallandimager2 AT jeffreyapedelty prelaunchspectralcharacterizationoftheoperationallandimager2 AT jamespharr prelaunchspectralcharacterizationoftheoperationallandimager2 AT michaelrrodriguez prelaunchspectralcharacterizationoftheoperationallandimager2 AT timothymshuman prelaunchspectralcharacterizationoftheoperationallandimager2 AT cameronstutheit prelaunchspectralcharacterizationoftheoperationallandimager2 AT andreibsushkov prelaunchspectralcharacterizationoftheoperationallandimager2 |