What are the data types in the GLONASS daily subdirectories?
Each daily subdirectory under ftp://cddis.gsfc.nasa.gov/glonass/data/daily/ contains five subdirectories (yy denotes the two-digit year): yyd (compressed, Hatanaka-compacted RINEX observation data), yym (RINEX meteorological data for a subset of sites), yyn (compressed RINEX broadcast ephemeris files), yyo (compressed RINEX observation data), and yys (summary files of the observation data generated by UNAVCO’s TEQC software).