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Why would a particular activity not export its elevation data?

PopsJon
18 days ago

My VivoActive 4s recorded a cycle ride over several hours.

In Garmin Connect it looks correct and the elevation data displays as expected.

However, when I export this particular activity as a FIT file (it says it it too large to export the GPX alone) the resultant file has zero elevation. 

All the other activities seem to export elevation data without a problem.

Any thoughts how to get the complete data out for this one too?

Many thanks.

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  • +1 18 days ago
    PopsJon said:
    the resultant file has zero elevation

    How are you seeing this? Something like FIT File Viewer should show altitude if the timestamps contain the appropriate data.

    Alternatively, if you could zip then attach the file to this thread. We can take a look to see what the issue might be. 

    • Zip the file, then in a reply post Insert >> Image/video/file >> click Upload >> browse for file >> OK.
    • Or upload the fit file to a file sharing service, such as OneDrive, Google Drive, Dropbox, make the file public, then paste a link to the file in your post.
  • 0 17 days ago in reply to seilogramp

    Many thanks @seilogramp - your tip for using FIT File Viewer was very useful.
    Indeed, you are correct and it shows both "enhanced altitude" and "GPS altitude". 

    I used GPSprune and its import utility GPSBabel to read in the FIT data. Embarrassingly, having gone back through the same steps, I am now seeing the elevation data! Potentially, my error is in some Python code which I have used to extract the GPX track directly from the FIT file. I will review all my steps to understand where the elevation data was lost.

    Many thanks again and sorry for wasting your time (although it was still of great value to me!).