Based on the principle of linearization problem of determining the spatial coordinates of ground points determined from satellite measurements of space navigation systems developed linear method for determining spatial distances between terrestrial objects. It is shown that this method biases in satellite navigation coordinates do not affect the accuracy of calculation of distances, at what linearity significantly increases the accuracy of the coordinate difference between the ground points , the calculations do not require knowledge of the approximate values of the coordinate differences between the points, the difference between the coordinates are calculated by direct linear way, due to the linearity of the method are possible complete elimination of systematic errors and random decrease.