Skip to content

Landsat-8

Landsat-8 panchromatic and multispectral EO data products are calibrated using the Optical Products Calibration (OPT-Calib) service. The process applied is the same for PAN and MS acquisitions.

Image-001

DN to Reflectance

Reflective band DN’s are converted to TOA reflectance using the rescaling coefficients in the MTL file1:

\[ R(b)′= M_b \times DN + A_b \]

where:

\(R(b)'\) is the Top of Atmosphere planetary reflectance, without correction for solar angle.

Note that \(R(b)'\) does not contain a correction for the sun angle.

  • \(M_b\) is the band-specific multiplicative rescaling factor from the metadata (REFLECTANCE_MULT_BAND_x, where x is the band number)

  • \(A_b\) is the band-specific additive rescaling factor from the metadata (REFLECTANCE_ADD_BAND_x, where x is the band number)

Top of Atmosphere reflectance with a correction for the sun angle is then:

\[ R(b) = R(b)' \times cos(θ_{SZ}) = R(b)' \times sin(θ_{SE}) \]

where:

  • \(R(b)\) is the TOA planetary reflectance

  • \(θ_{SE}\) is the local sun elevation angle. The scene center sun elevation angle in degrees is provided in the metadata (SUN_ELEVATION).

  • \(θ_{SZ}\) is the local solar zenith angle; \(θ_{SZ} = 90° - θ_{SE}\)

Input

The input is an ingested Landsat-8, see details here.

Output

The output is a STAC item GeoJSON2 including the assets shown below

  "assets": {
    "coastal": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "data",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/coastal.tif",
      "eo:bands": [
        {
          "name": "coastal",
          "common_name": "coastal",
          "center_wavelength": 0.44,
          "full_width_half_max": 0.02
        }
      ],
      "raster:bands": [
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "12875",
            "mean": "1377.7385718365",
            "stddev": "1113.1136069519",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -25.245098039215687,
            "max": 12900.245098039215,
          }
        }
      ],
      "file:size": 79819050
    },
    "swir16": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "data",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/swir16.tif",
      "eo:bands": [
        {
          "name": "swir16",
          "common_name": "swir16",
          "center_wavelength": 1.6,
          "full_width_half_max": 0.08
        }
      ],
      "raster:bands": [
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "9617",
            "mean": "1706.4284159658",
            "stddev": "1493.1111513652",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -18.856862745098038,
            "max": 9635.856862745099,
          }
        }
      ],
      "file:size": 89443820
    },
    "pan": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "data",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/pan.tif",
      "eo:bands": [
        {
          "name": "pan",
          "common_name": "pan",
          "center_wavelength": 0.59,
          "full_width_half_max": 0.18
        }
      ],
      "raster:bands": [
        {
          "spatial_resolution": 15,
          "statistics": {
            "minimum": "0",
            "maximum": "13809",
            "mean": "1281.1037347165",
            "stddev": "1138.9614587829",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -27.076470588235296,
            "max": 13836.076470588236,
          }
        }
      ],
      "file:size": 334510591
    },
    "cirrus": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "data",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/cirrus.tif",
      "eo:bands": [
        {
          "name": "cirrus",
          "common_name": "cirrus",
          "center_wavelength": 1.37,
          "full_width_half_max": 0.02
        }
      ],
      "raster:bands": [
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "-7",
            "maximum": "2435",
            "mean": "17.69152253714",
            "stddev": "67.125218149846",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -11.788235294117648,
            "max": 2439.788235294118,
          }
        }
      ],
      "file:size": 33487765
    },
    "nir": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "data",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/nir.tif",
      "eo:bands": [
        {
          "name": "nir",
          "common_name": "nir",
          "center_wavelength": 0.86,
          "full_width_half_max": 0.03
        }
      ],
      "raster:bands": [
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "13809",
            "mean": "2226.6358674499",
            "stddev": "1722.4087815368",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -27.076470588235296,
            "max": 13836.076470588236,
          }
        }
      ],
      "file:size": 90302218
    },
    "red": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "data",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/red.tif",
      "eo:bands": [
        {
          "name": "red",
          "common_name": "red",
          "center_wavelength": 0.65,
          "full_width_half_max": 0.04
        }
      ],
      "raster:bands": [
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "13809",
            "mean": "1287.3335716868",
            "stddev": "1188.5749744631",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -27.076470588235296,
            "max": 13836.076470588236,
          }
        }
      ],
      "file:size": 86542918
    },
    "blue": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "data",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/blue.tif",
      "eo:bands": [
        {
          "name": "blue",
          "common_name": "blue",
          "center_wavelength": 0.48,
          "full_width_half_max": 0.06
        }
      ],
      "raster:bands": [
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "13392",
            "mean": "1289.548799514",
            "stddev": "1100.0780390421",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -26.258823529411764,
            "max": 13418.258823529412,
          }
        }
      ],
      "file:size": 81737556
    },
    "swir22": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "data",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/swir22.tif",
      "eo:bands": [
        {
          "name": "swir22",
          "common_name": "swir22",
          "center_wavelength": 2.2,
          "full_width_half_max": 0.2
        }
      ],
      "raster:bands": [
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "10335",
            "mean": "1112.8459264212",
            "stddev": "1088.9125502025",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -20.264705882352942,
            "max": 10355.264705882353,
          }
        }
      ],
      "file:size": 87252361
    },
    "green": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "data",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/green.tif",
      "eo:bands": [
        {
          "name": "green",
          "common_name": "green",
          "center_wavelength": 0.56,
          "full_width_half_max": 0.06
        }
      ],
      "raster:bands": [
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "13495",
            "mean": "1298.1569357367",
            "stddev": "1119.3060565885",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -26.46078431372549,
            "max": 13521.460784313726,
          }
        }
      ],
      "file:size": 84312698
    },
    "lwir12": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "data",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/lwir12.tif",
      "eo:bands": [
        {
          "name": "lwir12",
          "common_name": "lwir12",
          "center_wavelength": 12,
          "full_width_half_max": 1
        }
      ],
      "raster:bands": [
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "12156",
            "mean": "8124.0720276967",
            "stddev": "5472.2301137303",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -23.83529411764706,
            "max": 12179.835294117647,
          }
        }
      ],
      "file:size": 47716463
    },
    "lwir11": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "data",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/lwir11.tif",
      "eo:bands": [
        {
          "name": "lwir11",
          "common_name": "lwir11",
          "center_wavelength": 10.9,
          "full_width_half_max": 0.8
        }
      ],
      "raster:bands": [
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "18018",
            "mean": "12021.977810737",
            "stddev": "8090.846851463",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -35.32941176470588,
            "max": 18053.329411764706,
          }
        }
      ],
      "file:size": 58560758
    },
    "overview-trc": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "composite",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/overview-trc.tif",
      "raster:bands": [
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "87.863780545074",
            "stddev": "72.707186337033",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "89.972034385402",
            "stddev": "69.005515461523",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "89.538866126759",
            "stddev": "66.773437416697",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "179.39197442785",
            "stddev": "116.46232433701",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        }
      ],
      "file:size": 129264348
    },
    "overview-civ": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "composite",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/overview-civ.tif",
      "raster:bands": [
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "139.19757180094",
            "stddev": "97.177644784173",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "87.863976572082",
            "stddev": "72.707635605958",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "89.971920951468",
            "stddev": "69.005245003471",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "179.39699951885",
            "stddev": "116.46008518347",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        }
      ],
      "file:size": 131867447
    },
    "overview-sir": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "composite",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/overview-sir.tif",
      "raster:bands": [
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "77.048136096142",
            "stddev": "74.788454312956",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "139.19800727318",
            "stddev": "97.178161474805",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "87.863780545074",
            "stddev": "72.707186337033",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "179.39582223655",
            "stddev": "116.46060979744",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        }
      ],
      "file:size": 135087904
    },
    "overview-atp": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "composite",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/overview-atp.tif",
      "raster:bands": [
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "77.048136096142",
            "stddev": "74.788454312956",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "111.95621779458",
            "stddev": "90.385510992982",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "139.19797047462",
            "stddev": "97.178117813259",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "179.3966186334",
            "stddev": "116.46025491308",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        }
      ],
      "file:size": 135268353
    },
    "overview-fcu": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "composite",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/overview-fcu.tif",
      "raster:bands": [
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "77.048136096142",
            "stddev": "74.788454312956",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "111.95621779458",
            "stddev": "90.385510992982",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "87.863966421926",
            "stddev": "72.707612343175",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "179.39582223655",
            "stddev": "116.46060979744",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        }
      ],
      "file:size": 137996463
    },
    "overview-vea": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "composite",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/overview-vea.tif",
      "raster:bands": [
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "111.95621779458",
            "stddev": "90.385510992982",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "139.19800727318",
            "stddev": "97.178161474805",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "87.863780545074",
            "stddev": "72.707186337033",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "179.39582223655",
            "stddev": "116.46060979744",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        }
      ],
      "file:size": 134275652
    },
    "overview-pan": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "composite",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/overview-pan.tif",
      "raster:bands": [
        {
          "spatial_resolution": 15,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "88.180576562474",
            "stddev": "69.865299777665",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 15,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "88.180720393477",
            "stddev": "69.865642176833",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 15,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "88.180576562474",
            "stddev": "69.865299777665",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 15,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "179.61330474079",
            "stddev": "116.36345418126",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        }
      ],
      "file:size": 507214428
    },
    "overview-law": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "composite",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/overview-law.tif",
      "raster:bands": [
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "139.19757180094",
            "stddev": "97.177644784173",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "111.95621779458",
            "stddev": "90.385510992982",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "87.863795244129",
            "stddev": "72.707220025509",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "179.39582223655",
            "stddev": "116.46060979744",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        }
      ],
      "file:size": 134262231
    },
    "overview-wad": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "composite",
        "reflectance",
        "visual"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/overview-wad.tif",
      "raster:bands": [
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "89.971920951468",
            "stddev": "69.005245003471",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "89.538993394099",
            "stddev": "66.773751824761",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "96.764824977449",
            "stddev": "69.033522849766",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 30,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "179.39147667982",
            "stddev": "116.46254611671",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        }
      ],
      "file:size": 121454532
    },
    "overview-trc-low-res": {
      "type": "image/tiff; application=geotiff; profile=cloud-optimized",
      "roles": [
        "composite",
        "overview",
        "reflectance"
      ],
      "href": "https://.../LC08_L1TP_151040_20220829_20220829_02_RT-calibrated/overview-trc-low-res.tif",
      "raster:bands": [
        {
          "spatial_resolution": 222.685546875,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "87.859018325806",
            "stddev": "72.691167256278",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 222.685546875,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "89.968678474426",
            "stddev": "68.99177929591",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 222.685546875,
          "statistics": {
            "minimum": "0",
            "maximum": "254",
            "mean": "89.540860176086",
            "stddev": "66.760468975327",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        },
        {
          "spatial_resolution": 222.685546875,
          "statistics": {
            "minimum": "0",
            "maximum": "255",
            "mean": "179.40995693207",
            "stddev": "116.45431023071",
            "valid_percent": "100"
          },
          "histogram": {
            "count": 256,
            "min": -0.5,
            "max": 255.5,
          }
        }
      ],
      "file:size": 2077527
    }
  }

  1. USGS, Using the USGS Landsat Level-1 Data Product, available at: https://www.usgs.gov

  2. Radiant Earth Foundation, STAC item specifications, a single spatiotemporal asset as a GeoJSON feature plus datetime and links, available at:https://github.com