PlanetScope 4-band multispectral basic and orthorectified scenes. This data set includes imagery from all PlanetScope sensors. All PSScene4Band items have a corresponding PSScene3Band item.
Products Overview
The visual and analytic products are in GeoTIFF format and the basic scene products are available as either NITF or GeoTIFFs. The GeoTIFFs are resampled at 3 meters and projected in the UTM projection using the WGS84 datum. An alpha mask is provided as a binary color channel, and can be used to remove or hide low quality pixels near the periphery of a given scene. This mask compensates for effects due to vignetting, low SNR, or hot or cold pixels.
PlanetScope satellites collect imagery as a series of overlapping framed scenes, and are not organized to any particular grid system. The Ortho Scene products enable users to create seamless imagery by stitching together PlanetScope Ortho Scenes of their choice and clipping it to a tiling grid structure as required.
The PlanetScope Ortho Scene product is orthorectified and is designed for applications that require imagery with an accurate geolocation and cartographic projection. It has been processed to remove distortions caused by terrain and can be used for cartographic purposes. The Ortho Scenes are delivered as visual (RGB) and analytic products. Ortho Scenes are radiometrically, sensor, and geometrically corrected products that are projected to a cartographic map projection. The geometric correction uses fine Digital Elevation Models (DEMs) with a post spacing of between 30 and 90 meters.
Ground Control Points (GCPs) are used in the creation of every image and the accuracy of the product will vary from region to region based on available GCPs.
Product band order:
- Band 1 = Blue
- Band 2 = Green
- Band 3 = Red
- Band 4 = Near-infrared
Item Properties
| Property Name | Description | Type |
|---|---|---|
| id | Globally unique item identifier. | string |
| _permissions | The permissions that the authenticated user has to the item. | array |
| item_type | Name of the item type. | string |
| provider | Name of the item provider (e.g. “planetscope”, ”rapideye”). | string |
| satellite_id | Globally unique satellite identifier. | string |
| instrument | Name of the satellite instrument used to collect the image. | string |
| strip_id | The unique identifier of the image stripe that the item came from. | string |
| geometry | Geographic boundary, formatted as a GeoJSON polygon. | json |
| cloud_cover | Average percentage of cloud coverage. | double |
| gsd | Ground sample distance - the distance between pixel centers as measured on the ground in meters. | double |
| pixel_resolution | Pixel resolution of the imagery in meters. | double |
| epsg_code | Ortho tile grid cell that the item is located in (not used if Scene). | integer |
| sun_azimuth | The angle of the sun, as seen by the observer, measured clockwise from the north (0 - 360). | double |
| sun_elevation | The angle of the sun above the horizon (0 - 90). | double |
| view_angle | The satellite's across-track, off-nadir viewing angle. Positive numbers denote east, negative numbers denote west (-25 - +25). | double |
| rows | Number of rows in the image. | integer |
| columns | Number of columns in the image. | integer |
| origin_x | ULX coordinate of the extent of the data. The coordinate references the top left corner of the top left pixel. | double |
| origin_y | ULY coordinate of the extent of the data. The coordinate references the top left corner of the top left pixel. | double |
| quality_category | Planet image quality metric: Standard or Test. To qualify for "standard" image quality an image must meet a variety of quality standards, for example: PAN motion blur less than 1.15 pixels, compression bits per pixel less than 3. If the image does not meet these criteria it is considered "test" quality. | string |
| anomalous_pixels | Percentage of pixels that may have errors. Represented spatially in the UDM. | double |
| usable_data | Percentage of pixels that are usable, subtracting cloud cover and black fill. | double |
| ground_control | Positional accuracy of the item. If the item has uncertain positional accuracy, this value will be false. | boolean |
| acquired | Timestamp that the item was captured. | datetime |
| published | Timestamp that the item was published to the Planet API. | datetime |
| updated | Timestamp that the item record was last updated. | datetime |
Available Asset Types
| Asset Name | Description |
|---|---|
| analytic | Radiometrically calibrated GeoTiff suitable for analytic applications. |
| analytic_sr | Atmospherically corrected surface reflectance product. |
| analytic_xml | Analytic asset XML metadata file. |
| analytic_dn | Non-radiometrically calibrated GeoTiff suitable for analytic applications. |
| analytic_dn_xml | Analytic DN asset XML metadata file. |
| udm | Unusable Data Mask - Unusable data bit mask in GeoTIFF format for the visual and analytic scene assets. |
| basic_analytic | Top of atmosphere radiance (at sensor) and sensor corrected GeoTiff. Scene based framing and not projected to a cartographic projection. |
| basic_analytic_xml | Basic analytic asset XML metadata file. |
| basic_analytic_rpc | Rational Polynomial Coefficients text file used to orthorectify the basic_analytic asset. |
| basic_analytic_dn | Basic sensor corrected scene GeoTiff. Scene based framing and not projected to a cartographic projection. |
| basic_analytic_dn_xml | Basic analytic DN asset XML metadata file. |
| basic_analytic_dn_rpc | Rational Polynomial Coefficients text file used to orthorectify basic_analytic_dn asset. |
| basic_analytic_nitf | Top of atmosphere radiance (at sensor) and sensor corrected in NITF format. Scene based framing and not projected to a cartographic projection. |
| basic_analytic_xml_nitf | Basic analytic XML metadata file. |
| basic_analytic_rpc_nitf | Rational Polynomial Coefficients text file used to orthorectify the basic_analytic asset. |
| basic_analytic_dn_nitf | Basic sensor corrected scene NITF. Scene based framing and not projected to a cartographic projection. |
| basic_analytic_dn_xml_nitf | Basic analytic DN XML metadata file. |
| basic_analytic_dn_rpc_nitf | Rational Polynomial Coefficients text file used to orthorectify basic_analytic_dn_nitf asset. |
| basic_udm | Usable Data Mask - Usable data bit mask in GeoTIFF format for the basic analytic scene assets. |
| basic_udm2 | Usable Data Mask 2.0. Read more about this new asset here. |