tracking station 
noun
A place from which the movements of missiles, aircraft, or satellites are tracked by radar or radio.Galileo will consist of about 30 satellites, a global network of tracking stations and central control facilities in Europe....
- A test this month will verify the spacecraft's ability to communicate through NASA's Deep Space Network tracking stations.
- A confirmation of successful release is expected to be received from NASA's Deep Space Network tracking stations at Madrid, Spain and Goldstone, Calif., shortly before 8: 00 p.m.
- in question
- in quick (or rapid) succession
- inquietude
- inquilab
- inquiline
- in quintuplicate
- inquire
- inquirer
- inquiring
- inquiry
- inquisition
- inquisitional
- inquisitive
- inquisitively
- inquisitiveness
- inquisitor
- Inquisitor General
- inquisitorial
- inquisitorially
- inquorate
- INR
- in re
- sexist
- sexisyllabic
- sexisyllable