# Optitrack Analysis ### Analyse Recording This tool is used to record some tracking data and this tracking data can be used at a later time to analyse the accuracy of the tracking system. It is useful to help analyse whether some cameras have shifted over time since the last calbration, and whether a new calibration or recalibration is needed. If the reprojection error is higher than 1.0 pixel for one camera, it is an indication that a new calibration / recalibration is needed. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://stage-precision.gitbook.io/grid/optitrack/optitrack-volume/optitrack-analysis.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.