{
"USGS Publications Warehouse": { "@context": "https://schema.org", "@type": "Article", "additionalType": "Journal Article", "name": "Curiosity's Mars Hand Lens Imager (MAHLI) investigation", "identifier": [ { "@type": "PropertyValue", "propertyID": "USGS Publications Warehouse IndexID", "value": "70039317", "url": "https://pubs.usgs.gov/publication/70039317" }, { "@type": "PropertyValue", "propertyID": "USGS Publications Warehouse Internal ID", "value": 70039317 }, { "@type": "PropertyValue", "propertyID": "DOI", "value": "10.1007/s11214-012-9910-4", "url": "https://doi.org/10.1007/s11214-012-9910-4" } ], "journal": { "@type": "Periodical", "name": "Space Science Reviews", "volumeNumber": "170", "issueNumber": "1-4" }, "inLanguage": "en", "isPartOf": [ { "@type": "CreativeWorkSeries", "name": "Space Science Reviews" } ], "datePublished": "2012", "dateModified": "2020-10-02", "abstract": "The Mars Science Laboratory (MSL) Mars Hand Lens Imager (MAHLI) investigation will use a 2-megapixel color camera with a focusable macro lens aboard the rover, Curiosity, to investigate the stratigraphy and grain-scale texture, structure, mineralogy, and morphology of geologic materials in northwestern Gale crater. Of particular interest is the stratigraphic record of a ?5 km thick layered rock sequence exposed on the slopes of Aeolis Mons (also known as Mount Sharp). The instrument consists of three parts, a camera head mounted on the turret at the end of a robotic arm, an electronics and data storage assembly located inside the rover body, and a calibration target mounted on the robotic arm shoulder azimuth actuator housing. MAHLI can acquire in-focus images at working distances from ?2.1 cm to infinity. At the minimum working distance, image pixel scale is ?14 \u03bcm per pixel and very coarse silt grains can be resolved. At the working distance of the Mars Exploration Rover Microscopic Imager cameras aboard Spirit and Opportunity, MAHLI?s resolution is comparable at ?30 \u03bcm per pixel. Onboard capabilities include autofocus, auto-exposure, sub-framing, video imaging, Bayer pattern color interpolation, lossy and lossless compression, focus merging of up to 8 focus stack images, white light and longwave ultraviolet (365 nm) illumination of nearby subjects, and 8 gigabytes of non-volatile memory data storage.", "description": "59 p.", "publisher": { "@type": "Organization", "name": "Springer" }, "author": [ { "@type": "Person", "name": "Bell, James F. III", "givenName": "James F.", "familyName": "Bell" }, { "@type": "Person", "name": "Maki, Justin N.", "givenName": "Justin N.", "familyName": "Maki" }, { "@type": "Person", "name": "Edwards, Laurence J.", "givenName": "Laurence J.", "familyName": "Edwards" }, { "@type": "Person", "name": "Edgett, Kenneth S.", "givenName": "Kenneth S.", "familyName": "Edgett" }, { "@type": "Person", "name": "Yingst, R. Aileen", "givenName": "R. Aileen", "familyName": "Yingst" }, { "@type": "Person", "name": "Ravine, Michael A.", "givenName": "Michael A.", "familyName": "Ravine" }, { "@type": "Person", "name": "Caplinger, Michael A.", "givenName": "Michael A.", "familyName": "Caplinger" }, { "@type": "Person", "name": "Ghaemi, F. Tony", "givenName": "F. Tony", "familyName": "Ghaemi" }, { "@type": "Person", "name": "Schaffner, Jacob A.", "givenName": "Jacob A.", "familyName": "Schaffner" }, { "@type": "Person", "name": "Herkenhoff, Kenneth E. kherkenhoff@usgs.gov", "givenName": "Kenneth E.", "familyName": "Herkenhoff", "email": "kherkenhoff@usgs.gov", "identifier": { "@type": "PropertyValue", "propertyID": "ORCID", "value": "0000-0002-3153-6663", "url": "https://orcid.org/0000-0002-3153-6663" }, "affiliation": [ { "@type": "Organization", "name": "Astrogeology Science Center", "url": "https://www.usgs.gov/centers/astrogeology-science-center" } ] }, { "@type": "Person", "name": "Heydari, Ezat", "givenName": "Ezat", "familyName": "Heydari" }, { "@type": "Person", "name": "Kah, Linda C.", "givenName": "Linda C.", "familyName": "Kah" }, { "@type": "Person", "name": "Lemmon, Mark T.", "givenName": "Mark T.", "familyName": "Lemmon" }, { "@type": "Person", "name": "Minitti, Michelle E.", "givenName": "Michelle E.", "familyName": "Minitti" }, { "@type": "Person", "name": "Olson, Timothy S.", "givenName": "Timothy S.", "familyName": "Olson" }, { "@type": "Person", "name": "Parker, Timothy J.", "givenName": "Timothy J.", "familyName": "Parker" }, { "@type": "Person", "name": "Rowland, Scott K.", "givenName": "Scott K.", "familyName": "Rowland" }, { "@type": "Person", "name": "Schieber, Juergen", "givenName": "Juergen", "familyName": "Schieber" }, { "@type": "Person", "name": "Sullivan, Robert J.", "givenName": "Robert J.", "familyName": "Sullivan" }, { "@type": "Person", "name": "Sumner, Dawn Y.", "givenName": "Dawn Y.", "familyName": "Sumner" }, { "@type": "Person", "name": "Thomas, Peter C.", "givenName": "Peter C.", "familyName": "Thomas" }, { "@type": "Person", "name": "Jensen, Elsa H.", "givenName": "Elsa H.", "familyName": "Jensen" }, { "@type": "Person", "name": "Simmonds, John J.", "givenName": "John J.", "familyName": "Simmonds" }, { "@type": "Person", "name": "Sengstacken, Aaron J.", "givenName": "Aaron J.", "familyName": "Sengstacken" }, { "@type": "Person", "name": "Wilson, Reg G.", "givenName": "Reg G.", "familyName": "Wilson" }, { "@type": "Person", "name": "Goetz, Walter", "givenName": "Walter", "familyName": "Goetz" } ], "funder": [ { "@type": "Organization", "name": "Astrogeology Science Center", "url": "https://www.usgs.gov/centers/astrogeology-science-center" } ], "spatialCoverage": [ { "@type": "Place", "additionalType": "unknown", "name": "Mars", "url": "https://geonames.org/4709245" } ] }, "OpenAlex": { "abstract_inverted_index": { "The": [ 0, 71 ], "Mars": [ 1, 5, 155 ], "Science": [ 2 ], "Laboratory": [ 3 ], "(MSL)": [ 4 ], "Hand": [ 6 ], "Lens": [ 7 ], "Imager": [ 8, 159 ], "(MAHLI)": [ 9 ], "investigation": [ 10 ], "will": [ 11 ], "use": [ 12 ], "a": [ 13, 18, 52, 77, 88, 103 ], "2-megapixel": [ 14 ], "color": [ 15, 184 ], "camera": [ 16, 78 ], "with": [ 17 ], "focusable": [ 19 ], "macro": [ 20 ], "lens": [ 21 ], "aboard": [ 22, 161 ], "the": [ 23, 28, 48, 61, 82, 85, 99, 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