Introduction
21AT images are acquired by three very high-resolution optical satellites (TripleSat-1, 2 and 3) on a daily basis anywhere on the globe. The datasets are available starting with 2016.
Product Information
Geographic Coverage
The geographic coverage is global.
Technical Specifications
| Specifications | Description |
|---|---|
| Spatial Resolution | 3.2m (MS) 0.8m (P) |
| Image Type | Optical |
| Satellite Sensors | TripleSat-1 TripleSat-2 TripleSat-3 |
| Processing Levels | L2 (georectified, radiometrically and sensor corrected) |
| Radiometric Processing Levels | Analytic Display |
| Clip to geometry | Yes |
| File Formats | GeoTIFF |
| Revisit Frequency | Daily |
| Data Availability | 2016-present |
| Incidence Angle | 52° |
| Spectral Bands | Red Green Blue Near Infrared |
| Spectral Combinations | Bundle - Products include both PAN and MS in one package Pansharpened - Products combine the visual spectral information of the MS data with the detailed spatial information of the PAN data channel, resulting in a detailed very high resolution color product. |
| Bit Depths | 8 bits per pixel 16 bits per pixel |
| Coordinate System | WGS84/EPSG4326 |
| Absolute geolocation accuracy (nadir) | <20m CE90 |
Limitations
The AOI must be smaller than 100 000 sq. km.
The AOI must have less than 1000 vertices.
AOIs smaller than 25 sq. km will be charged the same price as for 25 sq. km.
UP42 Data Products
| Data Products | ID | Geometric processing level | Image format | Bit depth | Radiometric processing level | Acquisition mode | Coordinate system |
|---|---|---|---|---|---|---|---|
| Analytic | c141e253-8ad6-44bc-aab9-c6d3dff9cfc9 | Ortho | GeoTIFF | 16 bits per pixel | Analytic | Mono | WGS84 |
| Display | 352d60eb-8d67-4f1d-9461-aa8bcd36c38d | Ortho | GeoTIFF | 8 bits per pixel | Display | Mono | WGS84 |