4986 Clock RINIEX File Format 3.0 Text (Structured) A Clock RINEX (Receiver Independent Exchange) Format holds high precision time information for ground base receivers and GNSS (Global Navigation Satellite System) satellites. The files allow for the exchange of precise timing information. Digital Research Alliance of Canada - FRDR / Alliance de recherche numérique du Canada – DFDR 02/09/2026 02/09/2026 fmt/2110 PUID clk File extension 4475 Clock RINEX File Format 3.0 BOF; Offset: 5; Magic Bytes: 3.00{11}C{39}RINEX 4871 Absolute from BOF 5 0 332E3030{11}43{39}52494E4558 Is subsequent version of 4985 Clock RINEX File Format