Tracking issue In medium-term horizon we should be able to run on 2015 Open Data - [Open Data Portal](https://opendata.cern.ch/search?page=1&size=20&q=&type=Dataset&experiment=CMS&year=2015&subtype=Collision&subtype=Simulated&file_type=miniaod&file_type=miniaodsim) Initial work in https://github.com/cms-jet/PFNano/pull/46