STANDARD MAPPING PACKAGES
Photosat Mapping Deliverables, 3.0m
PhotoSat’s 5 m elevation grids have been demonstrated to have a relative vertical accuracy of 3.0 m to 5.0 m and a relative horizontal accuracy of 5.0 m over horizontal distances of 10 km. To achieve 5.0 m RMSE absolute accuracy, a minimum of three surveyed ground control points accurate to better than 50 cm are required for areas up to 1,000 km². For larger projects, we request one ground control point every additional 1,000 km². In the absence of ground control points the relative accuracy specifications apply and absolute accuracy is expected to be better than 10 m RMSE.
Photosat Mapping Deliverables 1.5M Accuracy
PhotoSat’s 3 m elevation grids have been demonstrated to have a relative vertical accuracy of 1.0 m to 2.0 m and a relative horizontal accuracy of 2.0 m over horizontal distances of 10 km. To achieve 2.0 m RMSE absolute accuracy, a minimum of three surveyed ground control points accurate to better than 20 cm are required for areas up to 500 km². For larger projects, we request one ground control point every additional 500 km². In the absence of ground control points the relative accuracy specifications apply and absolute accuracy is expected to be better than 5 m RMSE.