EP-165 Spacelab

(Opposite) NASA's new Tracking and Data Relay Satellite (TDRS), top right, serves as an orbit-to-ground-to-orbit communications link for Shuttle /Spacelab, far below at right, as well as for other low-altitude satellites such as the Landsat Earth observation satellite, center. Another high-altitude communications satellite, top left, acts as a relay between the TDRSS' ground stations (antennas at bottom). The four-satellite Global Positioning System is shown in red. The U.S. Space Telescope, right center, to be launched in 1985, is shown also using the TDRSS.

 

(Opposite) NASA's new Tracking and Data Relay Satellite (TDRS), top right, serves as an orbit-to-ground-to-orbit communications link for Shuttle /Spacelab, far below at right, as well as for other low-altitude satellites such as the Landsat Earth observation satellite, center. Another high-altitude communications satellite, top left, acts as a relay between the TDRSS' ground stations (antennas at bottom). The four-satellite Global Positioning System is shown in red. The U.S. Space Telescope, right center, to be launched in 1985, is shown also using the TDRSS.

- Back -