NASA | TDRS: The Network That Enables Exploration

NASA initially relied on ground stations for satellite communication, covering only 15% of orbits. To improve, NASA launched TDRS satellites in 1983, reducing dependency on international stations and providing continuous coverage. TDRS supports spacecraft like the ISS and Hubble, ensuring nonstop communication. Data is relayed through White Sands and Guam ground stations. TDRS remains vital for future space exploration.

What percentage of a satellite's orbit was covered by NASA's initial ground-based communication network?

• 10%

• 15%

• 25%

• 50%

In what year did NASA launch the first of a new series of communication and navigation satellites?

• 1980

• 1983

• 1985

• 1990

What is the primary function of the TDRS network?

• To measure rainfall

• To replace ground stations entirely

• To provide continuous coverage and communication

• To launch new satellites

Which NASA mission uses TDRS for real-time interactions with ground systems?

• Hubble Space Telescope

• Mars Rover

• Apollo Missions

• Voyager

Where does the TDRS network send data streams and voice communications?

• Johnson Space Center

• Kennedy Space Center

• Cape Canaveral

• White Sands Complex and Guam Remote Ground Terminal