I am developing a program that needs to collect precise and accurate data (i.e., position and time) regarding touches. I am collecting those data using to following code:

data = []
x, y = touch.location
t = touch.timestamp
data.append((x,y,t))

I am using this on the regular Ipad (6th gen)

How precise and accurate are x, y, and t? I looked at the docs (http://omz-software.com/pythonista/docs/ios/ui.html#ui.Touch), but I cannot seem to find this information anywhere.

Thanks!