This two numbers are there, beacuse in config.xml we specify various distances and spans in meters, but mapkit / location methods require a use of degrees. Latitude and longitude degrees vary throughout the planet and in our part of the world 1 degree latitude equals 111250.25... meters and 1 degree longitude euqals 70038.85... meters. So in order to change metric values from config.xml to proper degree values this two constant numbers are used.