These files are daily (*) dumps of the meta-information about public RIPE Atlas measurements. The files contain a one-line JSON object for each public measurement. Due to a bug in the archiver, until 2015-08-17 the "end time" of measurements is incorrect, it is shown to be the same as the "start time". This has been fixed in the 2015-08-25 dump first. (*) Up until 2020-11-11 the dumps were created weekly and contained *all* the public measurements that are known in RIPE Atlas. Since 2020-11-11 the dumps are created daily, and contain *only* those public measurements that were "active" in the last two weeks.