On my Galaxy S3 (I747, rooted stock ROM, 4.1.1 jellybean), there are a number (currently 66) of files in /data with names following the format RS_##.log, where ## is a 1 or 2 digit number, currently from 0 to 65.
All files are slightly less than 1KB in size and when viewed as text, contain nothing but strings of seemingly random 5 digit numbers, like these.
All files are owned by system and have rw-rw-rw permissions set.
Most of the files have been updated recently (yesterday) and within 1 minute of each other. The rest were updated just over 2 weeks ago, also all at once.
What exactly is creating these files and what exactly are they logging?