> For the complete documentation index, see [llms.txt](https://docs.sensori.systems/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sensori.systems/capturing-and-processing/control-point-csv-format.md).

# Control Point CSV Format

An example of the expected csv format for the control point survey data can be seen here. A right handed coordinate system should be used with units of metres:

<figure><img src="https://3186425580-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FvD3j4k6ayqZbkNgSVYA3%2Fuploads%2FVyj6ce2wB0kknJZVKw0A%2Fcsv_annotated.png?alt=media&amp;token=d3275f11-2e0a-4ccf-98c0-f6641a5b4f4a" alt=""><figcaption></figcaption></figure>

<mark style="color:red;">A minimum of 3 control points are required, otherwise they will be ignored.</mark>  Using more than 3 is strongly recommended.