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 |
| 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
| Limitations | Size of the area of interest and characteristics |
|---|---|
| Maximum order | < 100,000 km2 |
| Vertices | < 1000 vertices |
| Minimum price | AOIs smaller than 25 km2 will be charged the same price as for 25 km2. |
UP42 data products
| Data product | ID | Geometric processing level | Image format | Bit depth | Radiometric processing level | Acquisition mode | Coordinate system |
|---|---|---|---|---|---|---|---|
| Analytic — 16 bit | 37c26f4d-f6a9-47c9-ae4d-a095569ab8bc | Georectified | GeoTIFF | 16 bits per pixel | Analytic | Mono | WGS84 |
| Analytic — 8 bit | 2398d8f5-5f7f-4596-884d-345c0b07af14 | Georectified | GeoTIFF | 8 bits per pixel | Analytic | Mono | WGS84 |