Changing text


I’m new to blender and need it to reproduce the orbit of a satellite.
Hence, it has scientific constraints.
I successfully represented the movements of the Sun, Earth, Moon and the satellite (all of this thanks to python and ipo curves)
But i would like to add some text on each frame which describes the satellite coordinates. For example, i would like something like

Satellite coordinates :

in the top-left corner of the video.

I compute these coordinates in the python script and use them to create the ipo curve of the satellite.
My idea is to refresh the text with right values at each frame. This “text” object needs to follow an ipo curve as well so that it follows the path of the camera which has a proper motion too.

I hope you understand what I mean. I don’t know if there exists any simpler way or if it is even possible.

Any hint would be appreciated,