# Spacecraft position determination

As I understand tone ranging is one of the technique used to determine satellite range from the earth station. In this case the position along the line of sight is being determined. How the position along the other 2 directions are determined ?

As I understand tone ranging is one of the technique used to determine satellite range from the earth station. In this case the position along the line of sight is being determined. How the position along the other 2 directions are determined ?

• I think tone ranging refers to a timing technique using a coded pulsed beams - usually radio - sometimes called a Gold code - in other words the standard radar ranging or GPS timing technique - am I right? It requires a radio transmission, and radio reception, sometimes from the same antenna but often from different ones. While you can get precision on the order of meters along the line of sign, it doesn't mean you can actually "see it". Can you elaborate how "you can measure the elevation and direction angle of the line of sight too"? – uhoh May 20 '16 at 12:41