My GPS receiver can share ephemeris info as binary data. The queried data is having .eph format. I tried to open it in Notepad but seems unreadable (gibberish). Is there any specific software to open this ephemeris.eph file?

  • $\begingroup$ Can you edit and include the make and model of your GPS receiver ? The only hits I was getting that weren't to the JPL planetary ephemerides or generic info about the almanac that is in the messages were for Trimble's GPS Pathfinder Office $\endgroup$ Commented Sep 25, 2023 at 23:55
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    $\begingroup$ if you have a Linux system handy, the file command is pretty nice for identifying if it's an existing file type with a recognizable header. If not, it could just be a binary data blob $\endgroup$
    – Erin Anne
    Commented Sep 26, 2023 at 5:18
  • $\begingroup$ If file contains only binary values then HxD tool might be also very handy for your situation. As far as I know HxD can be downloaded both for Window and Linux. $\endgroup$ Commented Sep 26, 2023 at 9:10


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