positionkeeper

noun
UK /pəˈzɪʃənˌkiːpə/
US /pəˈzɪʃənˌkipər/

A person or tool that keeps track of where something is.

The positionkeeper on the ship recorded the boat's location every hour.


OTHER MEANINGS

2. A device that records the exact place of a moving object.

The positionkeeper logged the airplane's path across the ocean.

3. A person whose job is to note the location of players during a game.

The positionkeeper wrote down where each player stood on the field.

4. A software tool that saves the spot where you stopped reading or watching.

The app's positionkeeper remembered the page I was on.