This page no longer updated from 31 October 2001. Latest version can be found at ATS-4

Other Designations: Applications Technology Satellite. Class: Technology. Type: Communications. Nation: United States. Agency: NASA, NSF. Manufacturer: Hughes.

A launch vehicle failure stranded ATS-4 in a much lower than planned orbit, making the satellite nearly useless. Although the spacecraft's systems were functional, little data was obtained. Spacecraft: Gravity gradient stabilised, 130 W BOL. Payload: C-band communications package


Design Life: 3 years. Total Length: 1.8 m. Maximum Diameter: 1.4 m. Total Mass: 391 kg.

ATS-4 Chronology

10 August 1968 ATS 4 Program: ATS. Launch Site: Cape Canaveral . Launch Vehicle: Atlas Centaur SLV-3C. FAILURE: Centaur oxidizer leak. No restart. Mass: 391 kg. Perigee: 220 km. Apogee: 769 km. Inclination: 29.1 deg.

Applications Technology Satellite; Centaur oxidizer leak. No restart. Launch vehicle was to have put payload into geosynchronous transfer orbit, instead was left in useless LEO orbit. Carried ion engine.


Back to Index
Last update 12 March 2001.
Contact Mark Wade with any corrections or comments.
Conditions for use of drawings, pictures, or other materials from this site..
© Mark Wade, 2001 .