Because so many constraints are needed (position, pose, velocity) there is no simple single answer. Here is a summary -- https://solarsystem.nasa.gov/basics/bs

Because so many constraints are needed (position, pose, velocity) there is no simple single answer. Here is a summary -- https://solarsystem.nasa.gov/basics/bsf13-1.php https://solarsystem.nasa.gov/basics/bsf13-1.php Skip down to "Navigation Data Aquisition"