Introduction
Maxar owns and operates the most agile and sophisticated constellation of high-resolution, high-accuracy Earth imaging
satellites. Accuracy testing is performed on a regular basis by comparing images to highly accurate ground control points.
This paper discusses the process that is used to assess accuracy and the resulting accuracy statements for WorldView-1 and
WorldView-2 satellite products. Maxar offers a range of imagery products with a variety of processing, radiometric correction
and geometric enhancement options, which result in differing levels of accuracy. The product levels are summarized in Table 1.
ACCURACY OF
WORLVIEW PRODUCTS
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*Less than 30 degrees off nadir and excluding terrain effects
*Representative of a point accuracy statement and not of a map accuracy statement
Core Products CE90/LE90 RMSE
NMAS
Scale
Radiometrically
and sensor corrected
Georectified Orthorectified
Geographic
Availability
System-Ready
(Basic)
5 m* 2.3 m* N/A
X
Worldwide
System-Ready
(Basic stereo pair)
5 m*/5 m 2.3 m N/A
X
Worldwide
View-Ready
(Standard )
5 m* 2.3 m* N/A
X X
Worldwide
View-Ready
(Ortho Ready
Standard)
5 m* 2.3 m* N/A
X X
Worldwide
View-Ready
(Ortho Ready
Stereo)
5 m*/5 m 3.3 m N/A
X X
Worldwide
Map-Ready
(Map Scale Ortho)
4.2 m 2 m 1:5,000
X X
Worldwide, limited to
fine DEM coverage
(SRTM + USGS NED)
Map-Ready
(Map Scale Ortho)
10.2 m 4.8 m 1:12,000
X X
Worldwide, limited to
fine DEM coverage
(SRTM + USGS NED)
Map-Ready
(Map Scale Ortho)
25.4 m 11.8 m 1:50,000
X X
Worldwide, limited to
fine DEM coverage
(SRTM + USGS NED)
Accuracy Specifications
Processing
Table 1: WorldView product summary