(1) University of Glasgow, Kelvin Building, Glasgow G12 8QQ, Scotland.
The LHCb Vertex Locator contains 42 silicon sensor modules. Each module has two silicon sensors. A method for determining the relative alignment of the silicon sensors within each module from data is presented. The software implementation details are discussed. Monte-Carlo simulation studies are described that demonstrate an alignment precision of 1.3 μm is obtained in the sensor plane.