{
  "body": "mercury",
  "title": "MESSENGER MDIS low-incidence global basemap",
  "source": "https://alasky.cds.unistra.fr/MocServer/query?ID=CDS/P/Mercury/MESSENGER-MDIS-LOI-166m&get=record&fmt=html",
  "originalProduct": "https://astrogeology.usgs.gov/search/map/mercury_messenger_mdis_basemap_loi_global_mosaic_166m",
  "credit": "NASA / Johns Hopkins University Applied Physics Laboratory / Arizona State University / Carnegie Institution of Washington / Applied Coherent Technology Corporation / USGS; HiPS and cutouts: CDS / Universit\u00e9 de Strasbourg / CNRS",
  "license": "ODbL-1.0, as declared for the CDS HiPS database. This derived WebP tile database is also available under ODbL-1.0.",
  "licenseUrl": "https://opendatacommons.org/licenses/odbl/1-0/",
  "hips": "https://alasky.cds.unistra.fr/Planets/CDS_P_Mercury_MESSENGER-MDIS-LOI-166m",
  "observations": "MESSENGER MDIS monochrome reflectance mosaic combining NAC and WAC 750 nm images, selected for low incidence angles. This is a greyscale reflectance map, not an RGB colour photograph.",
  "nativeSurveyMetresPerPixel": 166,
  "limitations": "Resampled to 16384 \u00d7 8192 (about 0.94 km/pixel at the equator). Source illumination and residual photographic shadows remain in the mosaic.",
  "coordinates": "Planetocentric latitude; east longitude -180 to +180; north-up; zero longitude in the centre.",
  "cutoutProcessing": "CDS hips2fits: four 4096 \u00d7 8192 CAR strips, fov 180 degrees, centres -135/-45/45/135 east longitude and latitude 0; inverse_longitude=true; PNG, min_cut=0, max_cut=255, linear. No per-strip histogram stretching.",
  "inputSha256": "5ce9f341f247bea7c195375d4dc4baf4bee62131950ae3dcb41a21da92a75553",
  "inputSize": [
    16384,
    8192
  ],
  "inputBytes": 118485064,
  "tileSize": 512,
  "gutter": 2,
  "levels": 4,
  "faces": 6,
  "tiles": 510,
  "totalWebpBytes": 38703902,
  "tileMinBytes": 39256,
  "tileMaxBytes": 168860,
  "overviewBytes": {
    "1024": 199992,
    "2048": 816780
  },
  "quality": 94,
  "qualitySamples": [
    {
      "face": 0,
      "psnr": 44.89,
      "meanAbsoluteError": 1.093
    },
    {
      "face": 1,
      "psnr": 44.73,
      "meanAbsoluteError": 1.12
    },
    {
      "face": 2,
      "psnr": 44.47,
      "meanAbsoluteError": 1.143
    },
    {
      "face": 3,
      "psnr": 45.2,
      "meanAbsoluteError": 1.035
    },
    {
      "face": 4,
      "psnr": 44.68,
      "meanAbsoluteError": 1.119
    },
    {
      "face": 5,
      "psnr": 44.61,
      "meanAbsoluteError": 1.131
    }
  ],
  "processing": "North-up -180..180 east-longitude sRGB input; bilinear cube reprojection, Lanczos mipmaps, WebP quality 94. No generated detail or colour adjustment."
}