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.
Gravity gradient stabilized, 130 W BOL
C-band communications package
|Country of Origin ||United States|
|Customer/User ||NASA, NSF|
|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|
| Name || Int'l Desig. || Date || Site || Vehicle || Orbit || Mass(kg) |
| 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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