This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Continuous Track Ivan. Test image to show track map using continuum of values The current colors for TD TS are pegged to and knots respectively Test image to show track map using continuum of values The current colors for TD TS are pegged to and knots respectively own Nilfanion talk Uploads other versions Original