Getting raw data from object track I have a slow motion video of an object falling under gravity with an aproprete scale in the background. It was filmed from a tripod so there is no camera movement in any plane. 

What I would like to do idealy is use blender's object tracker to produce graphs of the objects position over time. As I have a lot of clips to process and I don't care about the objects rotation I though of using just a single marker. I have already tracked it. 

My question now is how do I get the tracking data to a format that can be imported into exel such as plain text numbers? I see a number of solving options such a planear track but they require more markers. Is there such an option like 2D solve?
You can use a Follow Track constraint to 'project' a single track onto an object.


track your point, you dont need to solve the camera.
make a plane, and position it perpendicular to the camera... how you want to set this up is up to you, but it will effect the numbers you get out at the end.
add the constraint to an object, i just used the default Cube, and refer to the image bellow on how i set it up.
in the viewport image, I have calculated the motion paths, and you can see the path of the track is on the plane.
click the Constraint to Fcurve button, and it will bake the constraint to XYZ values.
Edit: Some times this button doesn't work. An alternative is: Search->Bake Action
you can then write some python to convert your animation to CSV format.