What is the Elevation/Altitude Displayed in the Platform?

The short answer to this question is that the elevation in Propeller is based on the elevation in the data you sent us. 

Geotags only with takeoff elevation

If your drone is set up to record the height above its takeoff point in geotags, the dataset will usually show an elevation on the ground mostly just above or below zero. Even if you're flying at the top of Mount Everest, the number you'll see will be around zero.


Geotags with GPS elevation

If your drone is recording the GPS elevation above "mean sea level," the data will be roughly aligned with the height of terrain in this area above the WGS84 ellipsoid used by GPS.  However, GPS elevation data is accurate within only 20m or so, and there may be very significant differences from a measured ground point. The WGS84 ellipsoid is also very different from the actual sea levels in many places by over 50m.


Ground Control Points or AeroPoints

If you use ground control points to make your data more accurate, you'll see an elevation based on the height datum used for the ground control. Most surveying data uses a geoid height datum—a correction that accounts for the lumpiness of the planet and gives you an elevation much closer to what the sea level would be at a given location.


You can use the CRS setting in the Settings menu to choose a different coordinate system. Different ellipsoids or datums can affect the height displayed.

You can also use the settings in the top right to switch between metric and imperial units.

I still can't do it!

We wrote these articles to equip you with everything you need to get the job done on your own, but we understand that sometimes this isn't sufficient.

If you're stuck, you can connect with our support team by clicking the support button on the top right corner of your user portal.