Item talk:Q55841

{

 "USGS Publications Warehouse": {
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     "name": "System characterization report on Planet\u2019s SuperDove",
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         "value": "ofr20211030F",
         "url": "https://pubs.usgs.gov/publication/ofr20211030F"
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         "value": 70228091
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         "propertyID": "DOI",
         "value": "10.3133/ofr20211030F",
         "url": "https://doi.org/10.3133/ofr20211030F"
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     "inLanguage": "en",
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     "datePublished": "2022",
     "dateModified": "2022-02-04",
     "abstract": "Executive SummaryThis report addresses system characterization of Planet\u2019s SuperDove and is part of a series of system characterization reports produced and delivered by the U.S. Geological Survey Earth Resources Observation and Science Cal/Val Center of Excellence. These reports present and detail the methodology and procedures for characterization; present technical and operational information about the specific sensing system being evaluated; and provide a summary of test measurements, data retention practices, data analysis results, and conclusions.Since 2013, Planet has launched more than 360 Dove 3U CubeSats, where U stands for 10-centimeter (cm) x 10-cm x 10-cm stowed dimensions, each weighing about 5.8 kilograms. Since 2015, all Dove satellites have had four-band imagers with about a 3-meter (m) pixel ground sample distance. Since 2016, all Doves have been launched into Sun-synchronous orbits varying from 474 to 524 kilometers, with inclinations between 97 and 98 degrees. The Dove series satellites do not have orbit maintenance capabilities; thus, their orbits decay slowly over time, contributing to shorter lifetimes of about 3 years. More information on Planet satellites and sensors is available in the \u201c2020 Joint Agency Commercial Imagery Evaluation\u2014Remote Sensing Satellite Compendium\u201d and from the manufacturer at https://www.planet.com/.The Earth Resources Observation and Science Cal/Val Center of Excellence system characterization team completed data analyses to characterize the geometric (interior and exterior), radiometric, and spatial performances. Results of these analyses indicate that SuperDove has a band-to-band geometric performance in the range of \u22121.701 m (\u22120.567 pixel) to 1.173 m (0.391 pixel) in easting and \u22124.950 m (\u22121.650 pixels) to 6.051 m (2.017 pixels) in northing, an image-to-image geometric performance of \u22121.17 m (\u22120.39 pixel) to 23.45 m (7.82 pixels) in easting and \u221210.61 m (\u22123.54 pixels) to \u22124.43 m (\u22121.48 pixels) in northing offset in comparison to Sentinel-2, a radiometric performance in the range of \u22120.043 to 0.020 in offset and 0.812 to 1.246 in slope, and a spatial performance in the range of 3.59 to 3.70 pixels for full width at half maximum, with a modulation transfer function at a Nyquist frequency in the range of 0.005 to 0.008.",
     "description": "iv, 19 p.",
     "publisher": {
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       "name": "U.S. Geological Survey"
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     "author": [
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         "name": "Kim, Minsu",
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             "name": "KBR, Inc., under contract to USGS"
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         "name": "Park, Seonkyung",
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         "@type": "Person",
         "name": "Stensaas, Gregory L. stensaas@usgs.gov",
         "givenName": "Gregory L.",
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         "@type": "Person",
         "name": "Anderson, Cody cody.anderson.ctr@usgs.gov",
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