There's documentation on the recommended way to connect those coordinate frames in [REP 105](http://www.ros.org/reps/rep-0105.html#earth) The default is to use an Earth Centered Earth Fixed frame. As you make progress on your project it would be great for you to share it back here. However in the future for questions please ask them on https://answers.ros.org it's a better location for asking questions and finding solutions. --- [Visit Topic](https://discourse.ros.org/t/ros-telescope-project/4846/2) or reply to this email to respond. If you do not want to receive messages from ros-users please use the unsubscribe link below. If you use the one above, you will stop all of ros-users from receiving updates. ______________________________________________________________________________ ros-users mailing list ros-users@lists.ros.org http://lists.ros.org/mailman/listinfo/ros-users Unsubscribe: