> For the complete documentation index, see [llms.txt](https://docs.phoenixlidar.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.phoenixlidar.com/gnss-hardware-and-ground-control/stonex-s-900-and-cube-a/post-processing.md).

# Post processing

This page covers how to process raw observations from a base station, change base station coordinates in Cube-A, and export GCPs for use in LiDARMill or Spatial Explorer. **If your base station was not placed on a known point** during collection of GCPs, your base station's raw observations will need to be post processed in order to obtain a more precise position. A precise base position solution can then be input into Cube-A to shift the location of all GCPs in response to this new base position. 

{% hint style="info" %}
If you placed your base station over a known point during GCP collection, you can skip to the end of this section on [exporting GCPs from Cube-A](https://docs.phoenixlidar.com/hardware/stonex-s-900-and-cube-a/post-processing/export-points-from-cube-a)
{% endhint %}