ATS-4
Applications Technology Satellite-4
Part of the ATS (Applications Technology Satellites) program
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 stabilized, 130 W BOL
Payload
C-band communications package
| Country of Origin | United States |
| Customer/User | NASA, NSF |
| Manufacturer(s) | Hughes |
| Size | 1.4 m dia. x 1.8 m high cylinder |
| Orbit | Planned to go to GEO, but Agena failure left it in 217 x 772 km orbit. |
| Design Life | 3 years |
Launch Facts
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| Name | Int'l Desig. | Date | Site | Vehicle | Orbit | Mass(kg) |
| Notes | ||||||
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| ATS 4 | 1968-068A | 8/10/68 | ESMC | Atlas Centaur | LEO | 391 |
| Applications Technology Satellite; 2nd stage failure left in useless LEO orbit | ||||||
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