@AvNeEsH71-iam you can start OP from this block:
https://github.com/NMRLipids/BilayerData/tree/main/experiments/OrderParameters/10.1002
It's one paper.
Note that, in the data files, there are NaNs for non-measured atoms. I think they should be removed. And JSON should be regenerated. @mdondrup thinks that the conventional json's NA is None, and not NaN. So, let's remove non-measured lines.